SBE SB-36 Operation Manuals

SBE SB-36 OPERATION MANUAL

SB-36 OPERATION MANUAL

Remastered by NoobowSystems Lab. Tomioka, Japan 2003 Rev.00

http://www.noobowsystems.com

PRELIMINARY VERSION

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SBE SB-36 OPERATION MANUAL

WARRANTY

Linear Systems, Inc. warrants equipment manufactured by it to be free from defects in
material or workmanship and agrees to repair such equipment which under normal use
and service, develops defects arising from the fault of the manufacturer. Equipment must
be returned transportation prepaid within 90 days from the date of original purchase, and
unless the warranty card has been filled in and returned within ten days of original
purchase, the warranty shall be void.

This warranty does not apply to equipment which (1) has been repaired or altered by
anyone in any way so as, in our judgment, to injure its stability or reliability, (2) has been
subject to misuse, negligence, or accident, (3) has had the serial number altered defaced,
or removed, or (4) has been connected, installed, adjusted otherwise than in accordance
with our written instructions.

The foregoing is in lieu of any other warranty or liability expressed, implied, or statutory
and in no event shall Linear Systems, Inc. be liable for special or consequential damages.
Linear Systems, Inc. neither assumes nor authorizes any person to assume for it any other
obligation or liability in connection with this equipment.

LINEAR SYSTEMS, INC.
220 Airport Boulevard
Watsonville, California 95076
[phone]

NoobowSystems Lab. Remastering Information

Revision 0.0 Aug.11, 2003 Preliminary release, some pages are missing.

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SBE SB-36 OPERATION MANUAL

TABLE OF CONTENTS

Paragraph Page

Section I
General Description

1.1

General

1

1.2

Specifications 1

1.2.1 General 1

1.2.2 Transmitter 1

1.2.3 Receiver 2

Section II
In starvation

2.1 General 3

2.2 Fixed Station 3

2.3 Antennas 3

2.4 Linear Amplifier 3

Section III
Operation

3.1 Operation Instructions 4
Section IV

Operating Procedure

4.1 Receiver Operation 11

4.2 Transmitter Tuning Procedure 11

4.3 CW operation 12

Section V
Theory of Operation

5.1 General 13

5.2 Transmitter circuitry 13

5.3 Receiver Circuitry 16

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SBE SB-36 OPERATION MANUAL

Table of Contents

1.0 INTRODUCTION...........................................................................................................................5

1.1 GENERAL............ ............. . ..................... ......................................................................................5

1.2 SPECIFICATIONS.............. ............... . ............... . ............... . ............... . ............... . .........................5

1.2.1..................................................................................................................................General

.....................................................................................................................................................5

1.2.2............................................................................................................................Transmitter

.....................................................................................................................................................6

2.0 INSTALLATION............................................................................................................................7

2.1 GENERAL............ ............. . ..................... ......................................................................................7

2.2 FIXED STATION....................................................................... ....................................................7

2.3 ANTENNAS........... . ................................................. . ................................................. ...................7

2.4 LINEAR AMPLIFIER.....................................................................................................................7

3.0 OPERATION....................................................................... ..........................................................8

3.1 OPERATING INSTRUCTIONS.......................... .............. ............. . .............. .................................8

3.1.1.............................................................................................................................................8

4.0 OPERATING PROCEDURE............ ............. . .......................... ............. . .....................................14

WARNING:............................................... .........................................................................................14

4.1 RECEIVER OPERATION...........................................................................................................14

4. 2 TRANSMIT TUNING PROCEDURE........................................ ..................................................14

4. 3 CW OPERATION.......................................................................................................................15

5. 0 THEORY OF OPERATION........................................................................................................17

5. 1 GENERAL.......................... ........................................................................................................17

5.1.1...........................................................................................................................................17

5. 2 TRANSMITTER CIRCUITRY..................... ........................ ........................ ................................18

5.2.1.........................................................................................................Transmitter Signal Path

...................................................................................................................................................18

5.2.2......................................................................................................Automatic Level Control

...................................................................................................................................................19

5. 3 RECEIVER CIRCUITRY....................... ......................................................................................19

5.3.1.............................................................................................................Receiver Signal Path

...................................................................................................................................................19

5.3.2........................................................................................................................Noise Blanker

...................................................................................................................................................20

5.3.3........................................................................................................Automatic Gain Control

...................................................................................................................................................20

5.3.4.........................................................................................................................VOX Keying

...................................................................................................................................................21

5.3.5..................................................................................................Frequency Mixing Network

...................................................................................................................................................21

5.3.5.1................................................................................................................Carrier Oscillator

...................................................................................................................................................22

5.3.5.2...................................................................................................................VFO Oscillator

...................................................................................................................................................22

5.3.5.3.................................................................................................High Frequency Oscillator

...................................................................................................................................................23

5.3.5.4 Side Tone Oscillator.....................................................................................................23

5.3.6..................................................................................................................................Counter

...................................................................................................................................................24

5.3.7........................................................................................................................Power Supply

...................................................................................................................................................25

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SBE SB-36 OPERATION MANUAL

6. 0 MAINTENANCE......................... . ...............................................................................................27

6. 1 INTRODUCTION........................................................................................................................27

6.2 PREVENTATIVE MAINTENANCE..............................................................................................27

6.2.1..................................................................................................................................General

...................................................................................................................................................27

6.2.2......................................................................................................................Cover Removal

...................................................................................................................................................27

6.2.3................................................................................................................................Cleaning

...................................................................................................................................................27

6.2.4............................................................................................................................Lubrication

...................................................................................................................................................28

6.3 TROUBLESHOOTING................................................................................................................28

6.3.1.................................................................................................Troubleshooting Techniques

...................................................................................................................................................28

6.3.2.......................................................................................Voltage Table and Injection Points

...................................................................................................................................................30

6.1.1........................................................Receiver DC Voltages - No Signal Input - USB Mode

...................................................................................................................................................30

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SBE SB-36 OPERATION MANUAL

1.0 INTRODUCTION

1.1 GENERAL

The SB-36 Transceiver is a single sideband, suppressed carrier, digital
read-out transceiver designed for the professional / amateur radio
operator.
The SB-36 is capable of operation in the SSB and CW modes of
operation. Frequency coverage includes all amateur bands between 3.0
and 29.7 MHz.
Provisions are made for spare crystals permitting operation in the non­amateur frequencies from 4-7 or 8-14 MHz. Tuning to the precise
frequency of operation is accomplished by observing the Arabic
numerals being indicated by the nixie tubes while adjusting the VFO
control for the desired display.
Included as standard equipment in the SB-36 are VOX, ANTI-VOX,
Noise Blanker, and Break-In CW.
The SB-36 consists of a basic transceiver unit and accessory AC Power
Supply. The companion AC Power Supply will operate from 117 VAC or
220 VAC, 50/60 Hertz.
The unique digital read-out incorporated in the SB-36 allows direct,
accurate, instantaneous frequency read-out to within ±100 Hz. This
accuracy will provide more reliable communications for the serious
amateur.

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SBE SB-36 OPERATION MANUAL

1.2 SPECIFICATIONS

1.2.1 General

Frequency Range

3.50 - 4.00 MHz
7.00 - 7.50 MHz

14.00 - 14.50 MHz

21.00 - 21.50 MHz

28.00 - 30.00 MHz

Frequency Accuracy Nixie tube Read-out, accurate to within +100 Hertz

on all bands

Dimensions Transceiver: 13 - 1/4 inches wide

7-1/4 inches high
l2-1/2 inches deep
Power Supply: 6 inches wide
7-1/4 inches high
l2-1/2 inches deep

Weight Transceiver:29 pounds

Power Supply: 15-1/2 pounds

1.2.2 Transmitter

Power Input SSB 500 watts, P.E.P.

CW 400 watts
Primary Input Voltage 115/220 VAC, 50/60 Hertz
PA cooling Fan Built. in to PA compartment
Carrier Suppression -50 db
Distortion Products -30 db
Modes of Operation USB,LSB or CW. Selectable frown front panel on

all frequencies.
Unwanted Sideband -50 db, @ 1kHz
Antenna impedance 50-100 ohms unbalanced
VSWR Not to exceed 2:1
Audio Band Width 300-2700 Hertz @ 6 db
Sideband Rejection Filters Crystal lattice, 9 MHz
Power Conscription Single Tone Output - 550 watts
Front Panel Meter Indicates Plate current (Ip), Relative RF Output

and ALC

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SBE SB-36 OPERATION MANUAL

1.2.3 Receiver

Sensitivity 0. 5 microvolts for 10 db S+N/N
Selectivity 2.4 kHz @6 db

4.2 kHz @60 db
Spurious Response Image and IF responses down at least 50 db
Stability 100 Hertz (or less) per 1/z hour under any normal

ambient condition
Audio Output 2. 5 watts @ 10% distortion
Speaker 8 ohms, built into accessory AC Power Supply

unit. Rear panel jack provided for external

speaker.
Noise Blanker IF type, switchable from front panel.
Receiver Incremental Tuning

(RIT)

±7 kHz, nominal

Power Consumption 100 watts
Front Panel Meter Calibrated in "S" units
Ear Phones Jack on front panel. 600 ohm output.

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SBE SB-36 OPERATION MANUAL

2.0 INSTALLATION

2.1 GENERAL

The SB-36 Transceiver is designed for Fixed, portable or mobile
operation. No special precautions need be observed in choice of a
location, provided adequate ventilation is available. A minimum of two
inches air space above the top cabinet and on all sides is
recommended to allow proper air flow around the top and bottom of the
cabinet. Do not place the unit on a car seat or similar surface which
knight block air flow through the bottom. Never stack other units above
or below the cabinet since the accumulated heat could cause
permanent damage.

2.2 FIXED STATION

Connect the transceiver's power supply inter-connect cable, speaker
cord and plug the 117 VAC power cord into an AC outlet to provide
power to all circuits for AC operation. The transceiver should be
connected to a good water pipe ground. The ground should be
connected to the terminal provided on the rear panel of the transceiver.

2.3 ANTENNAS

Results in both receiving and transmitting are dependent largely on the
antenna. The receiver is particularly sensitive to the antenna used. Any
of the common antenna systems designed for use on the higher
frequency amateur bands may be used with the SB-36 provided the
input impedance of the antenna system matches the capability of the pi
output matching network (50-100 ohms resistive). If a tuned open-wired
transmission line is used, or if a long wire antenna is desired, a suitable
antenna tuner must be used between the transceiver and the
transmission line to provide an impedance match between the
unbalanced pi output network and the balanced open wire line or long
wire.

2.4 LINEAR AMPLIFIER

Any conventional linear amplifier requiring 300 watts of drive or less
may be used in conjunction with the SB-36. An external jack on the rear
panel provides relay control information to accessory linear amplifiers.
Another external jack on the rear of the transceiver will accept ALC

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SBE SB-36 OPERATION MANUAL

feed-back information from the linear amplifier to control the power
output of the transceiver.

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SBE SB-36 OPERATION MANUAL

3.0 OPERATION

3.1 OPERATING INSTRUCTIONS

3.1.1

The front and rear panel controls, connectors and indicators used in
operating the SB-36 are shown in Figures 3.1 and 3.2 and are
described in Table 3.1. The descriptions given in the table are not
intended to be operating instructions, but only a reference to determine
the function of each stern. The actual transceiver operating procedures
will be covered in Sections 4.1 through 4.3.

FIGURE 3.1 SB-36 FRONT VIEW

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3.1 OPERATING INSTRUCTIONS

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SBE SB-36 OPERATION MANUAL

Number Nomenclature Description
1 RIT Push- On Switch The receiver incremental (RIT) is activated by depressing

the PUSH-ON switch.

2 RIT Lamp Wren the RIT PUSH-ON control is activated, the RIT Lamp

will be lit.

3 RIT Control Potentiometer varies the frequency of the VFO Oscillator, +7

kHz in the receive mode.

4 MIC Gain Control A dual function potentiometer. In USB or LSB modes of

operation, the microphone gain regulates the level
of audio input from the transceiver microphone. When the
mode switch is in the TUNE position, the MIC Gain Control
adjusts the RF drive to the final amplifier to a suitable level
for tuning the transmitter.

5 Noise Blanker

OFF/ON Switch

A two-position switch which controls the receiver noise
blanker. Noise blanker does not function when the
control is set to "OFF”. In the "ON" position the noise
blanker will cancel RF noise pulses in the receiver.

6 "kHz" Display A six nixie tube numeric read-out display is present

whenever the transceiver is activated.

7 Upper Band Limit Light This light will be activated on the following bands whenever

the VFO tuning knob is rotated beyond the
upper edge of the band: Bands effected:

3.5 - 4.0 MHz

28.5 - 29.0 MHz

29.5 - 30.0 MHz
The upper band limit light will not be activated on the
remaining bands.

8 Lower Band Light This light will activate whenever the VFO frequency knob is

turned below the lower limit of the band selected by the
band selector knob.

9



Meter The meter indication is dependent upon which "METER"

switch position is selected. When receiving, the 0-60
scale indicates receive signal strange regardless of the
"METER” switch position. In the IP position the 0-800
milliamp indication on the meter scale should be used. In the
ALC position, the bottom portion of the scale marked ALC
should be used.

10 AGC Switch A 3-position slide switch that determines the operation of the

autocratic gain control (AGC) circuit used in the receive
more. The OFF position opens the AGC output signal path
and the remaining two positions complete
the signal path. The "FAST" position selects a fast time
constant AGC voltage decay and the "SLOW" position
selects a slow "HANG" time constant AGC voltage decay.

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SBE SB-36 OPERATION MANUAL

11 Meter Switching The "METER" switch is used to select the desired parameter

to be measured. The three functions of the switch are as
follows;

ALC: When transmitting, place the meter switch in the

ALC position. This will help in determining the
proper levels of microphone gain and ALC.

IP: In this position, the meter will indicate plate current

in the final amplifier tubes.

RF: In this position, the meter will indicate the relative

RF output power of the transceiver.

"S” Meter: When receiving, the front panel meter indicates
the signal strength of the incoming receive signal
irregardless of the position of the meter switch.

12 Plate control The Plate Tuning Capacitor resonates the final amplifier Pi-

network capacity by varying the input capacity of the Pi­network.

13 Load control The Load Control matches the output impedance of the Pi-

network
to the impedance of the load.

14 PHONES Connector The jack connector that permits low impedance head- phone

connection. When the head-phone plug is inserted, the
speaker is disconnected from the circuit.

15 MIC connector The jack connector that permits a low-medium impedance

microphone audio output and push-to-talk lines to be
connected to the transceiver.

16 Mode Switch P. OFF: Main power removed from the transceiver.

TUNE: Tune position is used for transmitter tune-up (USB

selected).
USB: For upper sideband operation.
LSB: For lower sideband operation
CW: For CW operation.

17 "RF" Gain control A potentiometer which varies the operating bias of the first

receiver RF amplifier.

18 "AF" Gain Control The potentiometer which is used to set the speaker or

headphone audio output to a comfortable listening level.

19 VFO Tuning Knob A control that permits tuning of the VFO. Its movement

covers a 500 kHz band spread range with approximately
30 kHz per revolution. The exact position in the band, to
within +100 Hertz is indicated in the Nixie-tube
display.

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SBE SB-36 OPERATION MANUAL

20 100 Hz ON/OFF

Switch

A two-position switch which controls the 100 Hertz Nixie
tube. In the. ON position, the 100 Hertz Nixie tube
will be lit. In the OFF position the 100 Hertz Nixie tube will
be turned off.

21 "MHz" Band Selector An 11-position rotary switch used to select the desired

frequency band. The "A", "B" or "C" positions will result in no
transmitter output unless optional crystals have been
installed for non-amateur band use. The remaining positions
represent the specific low-end frequency of
the selected band.
WARNING: Do not change position of the "MHz" band
selector when the SB-36 is keyed for transmit condition,
as this will result in damage to the equipment, which is not
covered by the warranty.

22 Pre-Selector Control A control used to tune both the receiver RF front end and

the transmitter mixer and driver plate circuits.

23 VOX, REC-PTT, Send

Switch

A 3-position snap switch which provides for the following
functions:
In the VOX position, the built-in VOX circuitry in the unit is
activated.
In the REC-PTT position, the receiver will function until the
PUSH-TO-TALK button on the microphone is depressed to
activate the transmitter. When placed in the SEND position,
the transmitter is automatically keyed. This position should
be used for transmitter tune-up.

24 CARR Control A potentiometer that varies the level of carrier re-insert. This

control will adjust the transmitter power output when the unit
is in the CW mode of operation.

25 ALC Control A potentiometer that varies the gain of low level transmit

stages in the transceiver to prevent fiat-topping or over
driving the final amplifier tubes.

26 BIAS Control A potentiometer that varies the grid voltage to the final

amplifier tubes. This control should be used to set the final
amplifier plate current at 50 milliamps idle current.

27 External VFO Jack A connector for applying the output of an external VFO to

the transceiver.

28 KEY Jack A connector for applying the output of an external paddle

key.

29 VOX- SENSE Control A potentiometer that varies the attenuation of the audio input

being applied to the VOX amplifier circuitry. Its function is to
adjust the threshold level of speech that is required to key
the transmitter.

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SBE SB-36 OPERATION MANUAL

30 DELAY Control Potentiometer that varies the resistance in a time constant

circuit on the audio board. When using VOX keying in the
transmit mode, its function is to adjust the length of time that
the transmitter stays keyed after the operator stops
speaking.

31 ANTI- TRIP Control The potentiometer that varies the attenuation of the speaker

audio signal being applied to the ANTI-VOX amplifier circuit
input. Its function is to adjust the threshold level of the
modulated audio that keeps the SB-36 keyed for a receive
condition.

32 Phone Patch

"IN JACK"

A connector which will accept phone patch information to
excite the transmitter.

33 Phone Patch

"OUT JACK"

A connector which provides a 600 ohm audio output for use
with phone patch devices.

34 Antenna Jack The SO-239 connector for connecting the antenna to both

transmitter output and receiver input.

35 VFO Jack A 7-pin socket to be used in conjunction with the external

VFO accessory. When the external VFO is not used, the
dummy VFO plug should be installed in this
socket.

36 Ext. ALC Jack A connector for accepting external ALC information from a

companion linear amplifier to control the transmitter output.

37 RF Jack This jack provides a low-level output for use with a

transverter.

38 REM Jack This jack provides a remote output to control a companion

linear amplifier. The remote output jack
provides a ground connection when the transceiver is in the
transmit mode.

39 SP Jack A connector providing an audio output for external speaker

use.

40 POWER connector An 11-pin plug providing primary and secondary power input

connections from the accessory power supply.

41 GROUND Connector A threaded bolt with wing nut provided for earth ground

connections.

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SBE SB-36 OPERATION MANUAL

4.0 OPERATING PROCEDURE

WARNING:

Under no circumstances should operation of the SB-36 be attempted without a
proper antenna or dummy load of specific power handling capability. Please
read Sections 4.1 through 4.3 fully before attempting to operate the SB-36
Transceiver.

4.1 RECEIVER OPERATION

4.1.1 Rotate the mode selector switch clockwise from the P. OFF position to the
desired operating mode. Allow approximately two minutes for warm-up.

4.1.2 Rotate the BAND selector switch to the desired band.

4.1.3 Advance the RF gain control to the full clockwise position.

4.1.4 Rotate the AF Gain Control to its mid-range position.

4.1.5 Rotate the VFO Tuning Knob to the desired operating frequency.

4.1.6 Adjust the PRE-SELECT control until maximum back ground noise/interning
signal is obtained.

4.1.7 Place the noise blanker and AGC controls in desired operating position.

4.1.8 Adjust the RF and AF Gain Controls for a suitable listening level.

4.1.9 Fine tuning of the incoming signal may be accomplished by either rotating the
main VFO tuning knob or by use of the RIT control.
NOTE: If the RIT control is used, the Nixie tube read-out will indicate the exact
frequency of the incoming signal. When the SB-36 is placed in the transmit
mode, the Nixie tube read-out will revert back to the frequency selected when
the RIT control was off.

4. 2 TRANSMIT TUNING PROCEDURE

4.2.1 For transmitter tune up, place the controls as outlined in Steps 4.1.1 through

4.1.9.

4.2.2 Position the plate tuning control to correspond to the band on which operation
is desired.

4.2.3 Rotate the LOAD control to its maximum counter clockwise position.

4.2.4 Place the meter switch in the IP position.

4.2.5 Rotate the MIC control to its maximum counter clockwise position.

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SBE SB-36 OPERATION MANUAL

4.2.6 Place the MODE switch to the TUNE position.

4.2.7 Place the VOX/REC-PTT/SEND switch to the SEND position.

4.2.8 Advance the MIG Gain Control slightly while tuning the PRESELECT control for
maximum indication on the meter.
CAUTION: Do not exceed 300-400 mA of plate current until final amplifier
tuning and load control have been properly adjusted.

4.2.9 Rotate the PLATE tuning control for minimum or dip indication on
the IP reading. When dip is obtained, advance the MIC Gain Control
to produce a 300-400 mA indication on the meter.

4.2.10 Place the METER switch in the RF position.

4.2.11 Rotate the LOAD control for maximum meter indication. Use the MIC Gain
Control as necessary to keep the maximum meter indication below 600-700
mA indication on the meter. Tune both the PLATE Tuning Control and LOAD
control to obtain Maximum indication on the meter.

4.2.12 Place the VOX/REC-PTT /SEND switch to the REC-PTT position. Rotate the
MODE switch to either Upper or Lower Sideband position.

4.2.13 Place the METER switch in the IP position. Press the push-to-talk button on the
microphone and, while speaking into the microphone in a normal tone of voice,
adjust the microphone gain control for an average IP indication of 350-400
milliamps.

4.2.14 Place the METER switch in the ALC position. The meter will indicate nearly full
scale deflection. Adjust the ALC potentiometer (located on the rear panel of the
radio) so that on voice peaks, a slightly downward indication is obtained on the
meter. This will indicate that the ALC is functioning properly.

4.2.15 The METER switch may now be placed in the RF position to indicate relative
transmitter power output.

4. 3 CW OPERATION

4.3.1 Perform the steps outlined in sterns 4.2.1 through 4.2.15.

4.3.2 Place the VOX/REC-PTT/SEND switch to the VOX position.

4.3.3 Rotate the MODE switch to the CW position.

4.3.4 Connect a key to the KEY jack located on the rear panel of the
transceiver.

4.3.5 Depress the key and adjust the VOX SENSE CONTROL on the rear
panel so that the transmitter keys on. It may be also necessary to adjust the
ANTI-VOX potentiometer on the rear panel of the unit.

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SBE SB-36 OPERATION MANUAL

4.3.6 With the key depressed, adjust the CARR potentiometer (located on the rear
panel of the unit) so the transmitter power output does not exceed 200 watts on
15 through 80 meters or 150 watts on 10 meters.

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SBE SB-36 OPERATION MANUAL

5. 0 THEORY OF OPERATION

5. 1 GENERAL

5.1.1

Figure 5.1 shows the basic transmitter receive signal paths and the
printed circuit boards associated with each. The SB-36 Transceiver is
comprised of a power amplifier assembly, accessory power supply, and
one each of the following circuit boards:

Drive RF/Pre-Mixer and Oscillator Board, Counter Unit, VFO Oscillator,
carrier Oscillator Board, Double Sideband Amplifier/Crystal Filter/Noise
Blanker Board, Microphone Amplifier and Side Tone Oscillator Board,
Receiver IF Amplifier and AGC Amplifier Board, 20 volt Regulator
Board, AF Power Amplifier Board, and VOX and ANTI-TRIP Board.

The printed circuit board relationship in respect to transmit or receive
signal paths is shown in Figure 5.1. In the transmit mode, the signal is
routed from the microphone through the MIC AMP Board, Double
Sideband AMP/Crystal Filter Board, Driver RF/Pre-Mix and Oscillator
Board, and PA Assembly. A more detailed explanation of the transmit
signal path is covered in paragraph 5.2. In the receive mode the signal
is routed from the antenna connector through the PA assembly, Driver
RF/Pre-Mix and Oscillator Board, Double Sideband Amplifier / Crystal
Filter Board, Receiver IF Amplifier and AGC Amplifier Board, Audio PC
Board, to the external speaker jack. A more detailed explanation of the
receiver signal path is covered in paragraph 5. 3.

Frequencies generated by the BFO (9 MHz) Board are routed to the
double sideband amplifier and noise blanker board and from there are
routed to the driver RF/Pre-Mixer and Oscillator Board. Frequencies
generated by the VFO are routed to the Driver RF/Pre-Mixer and
Oscillator Board. The Theory of Operation section employs the use of
more detailed block diagram's than Figure 5.1. Complete schematics
are also contained in Section 7 and should be used in conjunction with
the description of the transmitter and receiver circuitry contained in the
following paragraphs.

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SBE SB-36 OPERATION MANUAL

5. 2 TRANSMITTER CIRCUITRY

5.2.1 Transmitter Signal Path

Stage-by-Stage transmit signal path block diagrams is shown in Figure

5.1. Unless otherwise indicated in the following explanation, it is
assumed that the SB-36 is operating in the Single Sideband Mode.

Audio signals from the microphone connector or phone patch input jack
are routed to TR-l located on the Microphone Amplifier and Side Tone
Oscillator Board. The audio signal is amplified by transistor TR-l and
then routed to the base of TR-2. The amplified output of transistor TR-2
is routed through transistor TR-3, which is operating as an emitter
follower. The output of transistor TR-3 is routed through variable
resister VR-l (Microphone Gain Potentiometer) to the base of transistor
TR-4.

The signal from transistor TR-4 is then routed to one input of the
balanced modulator. The balanced modulator is comprised of
transformer T-9 and Diodes D-1 through D-4. The second input of the
balanced modulator is a 9.0 MHz carrier signal. The 9.0 MHz carrier
signal originates in the carrier oscillator board and is applied to the
balanced modulator by variable resistor VR-5. The balanced modulator
mixes the 9.0 MHz carrier with the audio signal to produce a resultant

9.0 MHz double sideband signal with a carrier suppressed
approximately 40 dB. Third and higher order modulation products are
also suppressed approximately 30 dB below each sideband. The
balanced modulator output is routed to the input of the upper or lower
sideband crystal filter.

The output from the crystal filter is routed by transformer T-10 to the
input of transistor TR-7. The output of transistor TR-7 is coupled by
transformer T-11 to the grid of mixer tube V-1.

A second input to the grid of mixer tube V-l is derived by mixing the
output of the HFO transistor TR-10 with the output of VFO oscillator.
The HFO oscillator output and the VFO oscillator output are combined
in mixer transistor TR-11. The resultant frequency is transformer
coupled to the grid of mixer tube V-1.

The desired transmit frequency is obtained by mixing the 9.0 MHz
sideband output of transistor TR-7 with the HFO/VFO product produced

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SBE SB-36 OPERATION MANUAL

by transistor TR-11. The output of mixer tube V-l is coupled to the grid
of V-2, the driver tube. Output of tube V-2 is capacitively coupled to the
input of the PA tubes, V-5 and V-6.
Normal signal level at the PA tube input is 50 volts peak-to-peak. The
signal passes through the plate tuning circuits and metering circuits to
the main antenna connector located on the rear panel.
The RF power output at the connector is a nominal 300 watts on 15-80
meters and 200 watts on 10 meters.

5.2.2 Automatic Level Control

Automatic Level Control (ALC) is employed to control the amount of RF
drive to the power amplifier tubes. The ALC method utilized by the SB­36 is shown in simplified diagrams Figure 5.2. When the signal present
on the grid of the final amplifier tubes exceeds the grid bias of the tube,
Diodes D-29 and D-30 conduct.
This conduction will establish a reference voltage across the ALC
potentiometer.

The voltage on the center terminal of the ALC potentiometer is fed back
to the gate of transistor TR-7. This voltage is used to control the gain of
TR-7 to prevent flat-topping of the transmitter signal. This system of
ALC allows a high average level of modulation without a corresponding
increase in distortion products.

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SBE SB-36 OPERATION MANUAL

5. 3 RECEIVER CIRCUITRY

5.3.1 Receiver Signal Path

RF signals from the antenna connector pass through the antenna relay
and trap coil L-24 to the grid of 1st, the first RF amplifier. Trap Coil L-24
minimizes spurious receiver response caused by signals which fall
within the 9 MHz IF frequency range. The amplified signal from V-4 is
coupled to the grid of V-3, the receiver mixer tube. Signals present in V­3 consist of the incoming RF signal and the VFO/HFO mixture from TR-

11.

The output of V-3 is a 9 MHz IF signal which is coupled to either the
upper or lower crystal filter through transformer T-9A. Output of the
crystal filter is then coupled to TR-7, TR-28, TR-27 and TR-i6 which are
all 9 MHz IF amplifiers. The output of TR-26 is coupled to both the
receiver balance protector circuit and the receiver AGG circuit.

The 9 MHz output of the TR-26 is also coupled to Diodes D-18 through
D-21, the receiver balanced detector. The audio output of the balanced
detector is then applied to VR-509, the AF gain control. The audio
signal front the wiper of VR-9 is routed to the audio printed circuit board
where it is coupled to the base of TR-25. The output cf TR-25 drives
TR-22 and TR-23 the AF power amplifier transistors.

The resultant audio output from TR-22 and TR-23 is applied to the
earphone jack, speaker jack and telephone patch out jack.

5.3.2 Noise Blanker

The noise blanker circuit utilized in the SB-36 Transceiver receives
noise information directly from the antenna connector. The incoming
noise signal is amplified by integrated circuit TR-8 detected by Diodes
D-205 and D-206 and coupled to the gate of TR-7 to inhibit the received
signal from passing through
TR-7 during the presence of strong RF noise pulses.

5.3.3 Automatic Gain Control

Automatic Gain Control (AGC) is employed in the SB-36 Transceiver to
maintain a constant receive signal level passing through the front end
and IF Amplifier Board. The AGC circuitry can be completely disabled
by switching the front panel "AGC" control to the "OFF" position.

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SBE SB-36 OPERATION MANUAL

AGC circuit is located on the IF amplifier printed circuit board. Its
controlling effects can be overridden by setting of the front panel "RF
Gain" potentiometer VR-601. The AGC circuit provides two outputs with
an increasing RF input signal level. First, the AGC voltage is applied to
the control grid of V-4 the RF amplifier tube. Second, the AGC voltage
is applied to the gate of TR-28 on the IF amplifier board.

With the frost panel "AGC" switch set to the "OFF" position, the front
panel "RF Gain" potentiometer VR-601 still can control the gain in V-4,
the first RF amplifier tube. A negative potential from the wiper of VR­601 is applied to the control grid of V-4. The account of negative
potential selected by the wiper of VR-601 determines the gain of V-4.

The AGC circuit is comprised of Diodes D-22, D-23 and transistor TR-

29. Under a no-RF signal input condition, transistor TR-29 does not
conduct. With an RF signal present, transistor TR-29 is driven into
conduction. The output of transistor TR-29 is applied to both the grid of
V-4 and the gate of TR-28.

5.3.4 VOX Keying

When operating in the VOX mode of operation, transmitter switching is
accomplished automatically by the "VOX” circuitry. Microphone audio
signals are routed from TR-3 to VR-501, the VOX SENSE
potentiometer. The audio signal from the wiper of VR-501 is coupled to
the base of transistor TR-13. The audio output of TR-13 is provided
additional amplification by transistor TR-13A. The output of transistor
TR-13A is coupled to TR-14 and TR-15 which are Darlington connected
transistors. When transistors TR-14 and TR-15 are switch "ON" by the
audio signal from TR-13A, a ground return is provided for relay RF-l
which then places the transceiver in the transmit mode of operation.
The rear panel “DELAY" potentiometer VR-502 is used to vary the RC
time constant in tee emitter of transistor TR-13A. The "DELAY" circuit is
used to prevent the transmitter from unkeying between spoken syllables
of a lower speech rate. Therefore, it is desirable to keep the transmitter
keyed a few milliseconds longer than is normal. This is accomplished
by increasing the resistance setting of the "DELAY" potentiometer VR-

502.

Transistor TR-13 provides ANTI-TRIP or ANTI-VOX information to the
VOX circuitry. This information will prevent audio from the transmitter

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SBE SB-36 OPERATION MANUAL

speaker (which is also heard by the microphone) from keying the
transceiver. The output of transistor TR-13A, a DC potential derived
from Diodes D-14 and D-15, is applied to the base of the Darlington pair
transistors TR-14 and TR-15.
When the VOX SENSE and ANTI- TRIP controls are properly set, audio
from the transceiver speaker, which is also picked up by the
transceivers microphone, will produce opposite voltages at the base of
transistor TR-14 which will cancel each other so that the stage remains
cut off. Any speech then applied to the microphone will cause the stage
to conduct.

5.3.5 Frequency Mixing Network

The basic concept of the frequency mixing employed in the SB-36
Transceivers is show in Table 5.1.

Table 5.1 shows the relationship of the 9 MHz carrier oscillator, VFO
and HFO outputs for the various bands used in the SB-36 Transceiver.

TABLE 5.1 SB-36 FREQUENCY CHART

Band Mode Output Frequency BFO

Freq.

VFO Freq. HFO

Freq.

(MHz) (kHz) (kHz) (kHz) (kHz)

3.5 CW 3500 - 4000 9000 5000 - 5500 ---

7.0 CW 7000 - 7500 9000 5000 - 5500 21500

14.0 CW 14000 - 14500 9000 5000 - 5500 28500

21.0 CW 21000 - 21500 9000 5000 - 5500 35500

28.0 CW 28000 - 28500 9000 5000 - 5500 42500

28.5 CW 28500 - 29000 9000 5000 - 5500 43000

29.0 CW 29000 - 29500 9000 5000 - 5500 43500

29.5 CW 29500 - 30000 9000 5000 - 5500 44000

5.3.5.1 Carrier Oscillator

The Carrier Oscillator is a crystal controlled oscillator operating at 9.000
MHz. The output of the 9 MHz oscillator transistor TR-17 is coupled to
transmitter buffer transistor TR-19 and receiver buffer transistor TR-20.
The output of the transmitter buffer transistor TR-19 is applied via the
mode switch to the wiper arm of BR-5 located in the transmit balanced
modulator circuitry.

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SBE SB-36 OPERATION MANUAL

Output of the receiver buffer transistor TR-20 is coupled to the wiper
arm of potentiometer VR-12 located in the receiver balanced detector
circuit.

5.3.5.2 VFO Oscillator

The VFO Oscillator uses a field effect transistor TR-3

(*)

as the oscillator
and TR-31 as the buffer transistor. The output of TR-31 is connected to
transistors TR-32 and TR-48.

(* Typo. Should be TR-30.)

The output of transistor TR-32, VFO information, is applied to the
counter circuitry in the SB-36 Transceiver.

The output of transistor TR-48 is VFO injection which is applied to the
emitter of mixer transistor TR-11.

The VFO operates on a frequency of 5.0 to 5.5 MHz.

Diode D-211 is a variable capacitance Diode connected in parallel with
C-120. Diode D-211 is switched into the circuit by the RIT selector
switch and the main relay contacts to shift the VFO frequency when
capacitor VR-602 is varied from one extreme to the other.

<Figure 5.43 Block Diagram of Counter Unit >

5.3.5.3 High Frequency Oscillator

The SB-36 has seven high frequency crystals used in the HFO
oscillator circuitry. The relationship between the transceiver operating
frequency and the HFO crystal frequency is shown on Table 5. 2.

HFO oscillator transistor TR-10 is crystal controlled by one of the seven
crystals selected by the band switch. Output of HFO transistor TR-10 is
coupled to the base of pre-mixed transistor TR-11. Output of pre-mixed
transistor TR-11 is coupled to either the grid of the transmit mixer tube
V-1, or the cathode of the receiver mixer tube V-3.

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SBE SB-36 OPERATION MANUAL

5.3.5.4 Side Tone Oscillator

Transistor TR-5 is a phase shift side-tone oscillator which operates
when the mode switch is in either the CW or tune position. Frequency
with phase shift oscillator is approximately 1000 kHz.

The output of TR-5 is fed to the transmitter microphone audio circuit
when the mode switch is in the TUNE position to provide a signal which
will allow tune-up of the transmitter.

In the CW mode of operation, output from the side tone oscillator is fed
to the VOX circuitry and to the receiver audio amplifier.
The signal to the VOX circuitry is used to drive the VOX amplifier
transistor, TR-13.

The side tone audio output supplied to the receiver audio amplifier is
used for operator monitoring when in CW operation.

5.3.6 Counter

The basic concept of the frequency counter circuit employed by the SB­36 Transceiver is shown in Figure 5.3. To obtain a "RESET" and
"READ" command signal, the master clock input signal is reduced in
frequency by the clock divider chain. The “RESET" Command signal
instructs the RF counter chain when to start and when to stop
processing the RF input count-down.
The "READ" Command signal instructs the input count gate when to
pass and when not to pass the RF input to the RF counter chain.
The “READ" Command also causes the "READ" gate to turn on or off
the Nixie display tubes. The code converter circuit transposes the logic
output of the RF counter chain into driving voltages that cause the
appropriate numerals of each Nixie tube to illuminate.

The operating sequence of events for the frequency counter circuit is
as follows:

A. Momentary reset pulse clears the RF counter outputs causing the

output state to return to the starting count of zero.

B. The "READ" Command turns off the Nixie tubes for the duration of

the read-in period and also enables the input count gate to pass the
RF input to the RF counter.

C. The RF counter chain processes the RF input frequency count

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SBE SB-36 OPERATION MANUAL

down.

D. After a specific period of time, the "READ” Command switches to

the read-out potential. The operation of the input count is inhibited.
With no more inputs being applied to the RF counter chain, the last
count produced by each divider circuit (in the RF counter chain) is
retained. Their output stages are, in effect, a form of data storage.

E. When the "READ" Command is switched to the READ-OUT

potential, it also causes the "READ" gate to turn on the Nixie tubes.
The converted output states of the RF counter chain is displayed for
the duration of the READ-OUT potential.

F. The reset pulse reoccurs causing a recycling of events discussed in

paragraph 5.3.6, items A through E.

The previous sequence of events occurs at a rate faster than the
human eye can follow. Only the frequency display of the Nixie tubes is
perceived.

Operating in conjunction with the counter circuit in the SB-36
Transceiver are upper and lower band limit lights. The band limit lights
provide a visual indication to the operator when the transceiver VFO is
operating outside of a normal band. Table 5.2 shows the relationship
between the various bands in the SB-36 Transceiver and functions of
the band edge limit lights.

TABLE 5.2 UPPER/LOWER RANGE LIMIT LIGHTS

Band Upper Lamp Lower Lamp

80 m ON ON

40 m OFF ON

20 m OFF ON

15 m OFF ON

10 m (28.0 - 28.5 MHz) OFF ON

10 m (28.9 - 29.0 MHz) *1 ON ON

10 m (29.0 - 29.5 MHz) OFF ON

10 m (29.5 - 30.0 MHz) ON ON

(*1: Typo: Should be 28.5 -29.0MHz.)

5.3.7 Power Supply

The DC operating voltage for the SB-36 Transceiver are generated by
the companion AC power supply. The power supply consists of a
printed circuit board and miscellaneous electrical parts mounted in the

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SBE SB-36 OPERATION MANUAL

AC power supply chassis. A block diagrams of the power supply circuit
is shown in Figure 5.4.

Table 5.3 shows pin connections for the power supply interconnect
cable on the SB-36 Transceiver and the various voltages and currents
required at each pin.

TABLE 5.3 POWER SUPPLY REQUIREMENTS

Pin Voltage Current

1 Power Supply to Transceiver Ground ---

2 100 VAC ---

3 +12 VDC 700 mA

4 +30 VDC 150 mA

5 12 VAC Filaments

6 OFF/ON Switch ---

7 OFF/ON Switch ---

8 -180 VDC Bias

9 +180 VDC 80 mA

10 +400 VDC 70 mA

11 +800 VDC 650 mA

<Figure 5.4 Power Supply Block Diagram>

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SBE SB-36 OPERATION MANUAL

6. 0 MAINTENANCE

6. 1 INTRODUCTION

This section contains general information for use in preventative or
corrective maintenance, troubleshooting, component replacement and
troubleshooting aids. This section is not intended to contain information
necessary for major repair of the SB-36, however, information
contained herein may be useful in minor corrective maintenance.

6.2 PREVENTATIVE MAINTENANCE

6.2.1 General

Preventative maintenance consists of cleaning, visual inspection,
lubrication, etc. Preventative maintenance performed on a regular basis
may prevent breakdown and improve reliability.
The SB-36 Transceiver should be cleaned as often as operating
conditions require. Accumulation of dirt in the instrument can cause
overheating and component breakdown. Dirt on component acts as an
insulating blanket and prevents efficient heat dissipation. It also
provides an electrical conduction path.

CAUTION: Avoid the use of chemical cleaning agents which may
damage the plastic used in various components in the transceiver.

6.2.2 Cover Removal

Reprove the 20 Phillips Head Screws securing the top and bottom
cover to the transceiver. The top cover may then be removed and the
transceiver may be lifted free of the bottom cover.

6.2.3 Cleaning

A. Exterior. Loose dust accumulated on the outside cover of the SB-36

Transceiver and Power Supply can be removed with a soft
cloth or squall paint brush. A paint brush is particularly
useful for dislodging dirt on and around front panel
controls.

B. Interior. Dust in the interior of the transceiver should be r emoved

occasionally due to its electrical conductivity under high
humidity conditions. The best way to clean the interior is to
blow out the accumulated dust with dry, low velocity air. A

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SBE SB-36 OPERATION MANUAL

cotton tipped applicator is useful for cleaning in narrow
spaces and circuit boards.

The high voltage circuits, particularly located in the PA assembly,
should receive special attention. Excessive dirt in these areas may
cause high voltage arcing and result in improper operation of the
transceiver.

6.2.4 Lubrication

The reliability of potentiometers, rotary switches and other moving parts
can be maintained if they are kept properly lubricated. Use a cleaning
type lubricant on switch contacts. Lubricate switch detentes with a
heavier grease. Potentiometers which are not permanently sealed
should be lubricated with a lubricant which does not effect electrical
characteristics. A potentiometer lubricant can also be used on shaft
bushings. Do not over lubricate.

6.3 TROUBLESHOOTING

6.3.1 Troubleshooting Techniques

These troubleshooting procedures are arranged in an order which
checks the simplest possibility before proceeding. The first checks
assure proper operation and connection. If the trouble is not located by
these checks, the remaining steps aid in locating the defective
component. When the defective component is located it should be
replaced.

A. Check switch and control settings.
Incorrect settings can indicate a trouble that does not exist. If there is
any question about the correct function or operation of any control, see
the Operating Instructions section of this manual.

B. Check associated equipment.
Before proceeding with troubleshooting, check that the equipment used
with the transceiver is operating correctly. Check that the
interconnecting cables are not defective. Also, check the power supply.

C. Isolate trouble.
Investigate the extent of the symptoms by monitoring the front panel
and "kHz" display while operating in different switch and control settings

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SBE SB-36 OPERATION MANUAL

and various modes. Perform a visual check for damaged wires,
electrical and mechanical parts, and printed circuit boards. Check for
loose interconnection between printed circuit boards.

D. Check individual parts.
The following procedure describes the method of checking individual
parts. Parts which are soldered in place are best checked by
disconnecting one end. This isolates the measurements from the effects
of surrounding circuitry.

(1) Transistors and Integrated circuits.
The best check of operation is actual performance under operating
conditions. If a part is suspected of being defective, it can best be
checked by substituting a new part or one which has been checked
previously. However, be sure that circuit conditions are not such that a
replacement might also be damaged.

(2) Diodes.
A Diode can be checked for open or shorted conditions by measuring
the resistance between terminals. With an ohm meter scale having an
internal source of between 800 millivolts and 3 volts, the resistance
should be very high in one direction and very low when the leads are
reversed.

(3) Resistors.
Check the resistors with an ohm meter. check the electrical parts list for
the tolerance of the resistor used in the instrument. Resistors do not
nominally need to be replaced unless the measured value varies widely
from the specified value.

(4) Inductors.
Check for open inductors by checking continuity with an ohm meter.
Shorted or partially shorted inductors can easily be found by checking
the wave form response when high frequency signals are passed
through the circuit. Partially shorting often reduces high frequency
response (roll-off).

(5) Capacitors.
A leaky or shorted capacitor can best be detected by checking
resistance with an ohm meter on high scale. Do not exceed the voltage
reading of the capacitor. The resistance reading should be high after
initial charge of the capacitor. An open capacitor' can best be detected

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SBE SB-36 OPERATION MANUAL

with a capacitance meter or by checking whether the capacitor passes
AC signals.

6.3.2 Voltage Table and Injection Points

Table 6.1 contains voltage measurements and injection levels to be
used as an aid in isolating a defective stage or component.

TABLE 6. 1 VOLTAGE TABLE AND SIGNAL INJECTION LEVELS

Table 6.1.1 Receiver DC Voltages - No Signal Input - USB Mode

V4 6BZ6 (R.F. Amplifier) Pin 1 0.08 V

Pin 2 1.0 V

Pin 5 320 V

Pin 6 102 V

Pin 7 1.0 V

V3 6AW8 (Receiver Mixer) Pin 6 1.95 V

Pin 7 0.1 V

Pin 8

50 V

Pin 9 320 V

Gate Source Drain

TR-7 (IF Amplifier) 0.01V 0.47V 20V

TR-28 (IF Amplifier) 0.15V 1.1V 20V

Base Emitter

Collector

TR-27 (IF Amplifier) 7.2V 6.6V 18V

TR-26 (IF Amplifier) 6.8V 6.2V 14.5V

TR-29 (AGC Amplifier) Base Emitter

Collector

AFC OFF -8V -8V 0

AGC ON – No Input -8V -8V 0

AGC ON - 10µV Input -7.5V -8V -4V

AGC ON – 1000µV Input -7.4V -8V -5.6V




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SBE SB-36 OPERATION MANUAL

Table 6.1.2 Audio Amplifier DC Voltages

Base Emitter

Collector

TR-25 7.2V 7.8V 0.6V

TR-24 0.6V 0V 8.8V

TR-23 8.8V 9.4V 0V

TR-22 10.2V 9.7V 19.5V

Table 6.1.3 20V Regulator DC Voltages

Base Emitter

Collector

TR-45 22V 21.5V 27.4V

TR-46 21.7V 21.0V 28V

TR-47 13.8V 13.2V 22V

Table 6.1.4 Transmitter Tube DC Voltages - “Send” Mode – No Drive

V1 6EJ7 (Transmitter Mixer) Pin 1-3 5.2V

Pin 2 0V

Pin 7 310V

Pin 8 300V

V2 6BQ5 (Transmitter Driver) Pin 2 0.04V

Pin 3 9.8V

Pin 7 350V

Pin 9 315V

V5 & V6 (PA Tubes) Pin 5-9 -57V

Pin 3-11 190V

Pin 4-10 0V

Pin 2 0.04V

Plate Caps 780V

TABLE MISSING

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SBE SB-36 OPERATION MANUAL

SERVICE MAINTENANCE

Should your SB-36 fail to perform as stated in this manual, it is
recommended that SBE be contacted in writing. SBE will either
authorize return of the unit to the factory or refer you to an authorized
SBE repair agency in your area. DO NOT SHIP EQUIPMENT
WITHOUT PRIOR WRITTEN AUTHORIZATION FROM SBE.
Your letter to SBE must include the following:

1. Model number and serial number of equipment.

2. Date of purchase of equipment.

3. Nature of trouble.

4. Cause of trouble if known.

5. Name of distributor from whom equipment was purchased.

6. Your return address.

7. Method of shipment by which the equipment should be returned.

In addition, include any information that you feel will be helpful in
locating or
correcting the problems.

PARTS ORDERING INFORMATION

When ordering replacement parts, you should direct your order to an
SBE distributor or SBE, Replacement Parts Department, 220 Airport
Boulevard, Watsonville, California 95076. Please furnish the following
information.

1. Quantity required.

2. SBE part number and description.

3. Item or symbol number obtained from parts list, schematic,
component location drawings.

4. SBE model number and serial number.

Unless specified, SBE will determine the best method of shipment for
the parts involved.
All parts will be sent C.O.D. unless ordered through an SBE distributor.
NOTE: Minimum parts billing is $2.50.

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SBE SB-36 OPERATION MANUAL

FEP-501: MICROPHONE AMPLIFIER SIDE TONE OSCILLATOR PC BOARD

SYM PART NUMBER DESCRIPTION

C1 8000-00010-009 Capacitor, Fixed, Electrolytic, 47µF, 25V

C2 8000-00010-003 Capacitor, Fixed, Ceramic, 330pF, 50V

C3 8000-00010-007 Capacitor, Fixed, Electrolytic, 10µF, 16v

C4 8000-00010-007 Capacitor, Fixed, Electrolytic, 10µF, 16v

C5 8000-00010-007 Capacitor, Fixed, Electrolytic, 10µF, 16v

C6 8000-00010-004 Capacitor, Fixed, Ceramic, 0.01µF, 50V

C7 8000-00010-007 Capacitor, Fixed, Electrolytic, 10µF, 16v

C8 8000-00010-005 Capacitor, Fixed, Ceramic, 0.1µF, 50V

C9 8000-00010-007 Capacitor, Fixed, Electrolytic, 10µF, 16v

C10 8000-00010-008 Capacitor, Fixed, Electrolytic, 22µF, 25v

C11 8000-00010-008 Capacitor, Fixed, Electrolytic, 22µF, 25V

C12 8000-00010-007 Capacitor, Fixed, Electrolytic, 10µF, 16v

C13 8000-00010-007 Capacitor, Fixed, Electrolytic, 10µF, 16v

C14 8000-00010-010 Capacitor, Fixed, Ceramic, 0.02µF, 50V

C15 8000-00010-005 Capacitor, Fixed, Ceramic, 0.1µF, 50V

C16 8000-00010-007 Capacitor, Fixed, Electrolytic, 10µF, 16v

C17 8000-00010-006 Capacitor, Fixed, Mylar, 0.01µF, 50V

C18 8000-00010-006 Capacitor, Fixed, Mylar, 0.01µF, 50V

C19 8000-00010-005 Capacitor, Fixed, Ceramic, 0.1µF, 50V

RL4 8000-00010-015 Relay, 12 VDC

TR1 8000-00010-002 Transistor, 2SC458

TR2 8000-00010-002 Transistor, 2SC458

TR3 8000-00010-002 Transistor, 2SC458

TR4 8000-00010-001 Transistor, 2SC367

TR5 8000-00010-002 Transistor, 2SC458

VR2 8000-00010-011 Resistor, Variable, 10kΩ

VR3 8000-00010-012 Resistor, Variable, 100kΩ

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SBE SB-36 OPERATION MANUAL

FEP-502: DSB SSB AMPLIFIER AND NOISE BLANKER PC BOARD

SYM PART NUMBER DESCRIPTION

C22 8000-00010-004 Capacitor, Fixed, Ceramic, 0.01µF, 50V

C23 8000-00010-036 Capacitor, Fixed, Ceramic, 1000pF, 50V

C24 8000-00010-032 Capacitor, Fixed, Styrol, 22pF, 50V

C25 8000-00010-010 Capacitor, Fixed, Ceramic, 0.02µF, 50V

C26 8000-00010-010 Capacitor, Fixed, Ceramic, 0.02µF, 50V

C26A 8000-00010-005 Capacitor, Fixed, Ceramic, 0.1µF, 50V

C26B 8000-00010-005 Capacitor, Fixed, Ceramic, 0.1µF, 50V

C26C 8000-00010-004 Capacitor, Fixed, Ceramic, 0.01µF, 50V

C26D 8000-00010-034 Capacitor, Fixed, Electrolytic, 10uf, 25V

C26E 8000-00010-004 Capacitor, Fixed, Ceramic, 0.01µF, 50V

C26F 8000-00010-004 Capacitor, Fixed, Ceramic, 0.01µF, 50V

C26G 8000-00010-004 Capacitor, Fixed, Ceramic, 0.01µF, 50V

C26H 8000-00010-004 Capacitor, Fixed, Ceramic, 0.01µF, 50V

C26I 8000-00010-004 Capacitor, Fixed, Ceramic, 0.01µF, 50V

C26J 8000-00010-004 Capacitor, Fixed, Ceramic, 0.01µF, 50V

C26L 8000-00010-004 Capacitor, Fixed, Ceramic, 0.01µF, 50V

C26M 8000-00010-004 Capacitor, Fixed, Ceramic, 0.01µF, 50V

C26N 8000-00010-004 Capacitor, Fixed, Ceramic, 0.01µF, 50V

C26P 8000-00010-004 Capacitor, Fixed, Ceramic, 0.01µF, 50V

C26Q

8000-00010-004

Capacitor, Fixed, Ceramic, 0.01µF, 50V

C37 8000-00010-010 Capacitor, Fixed, Ceramic, 0.02µF, 50V

C38 8000-00010-010 Capacitor, Fixed, Ceramic, 0.02µF, 50V

C601 8000-00010-005 Capacitor, Fixed, Ceramic, 0.1µF, 50V

C602 8000-00010-028 Capacitor, Fixed, Ceramic, 5pF, 50V

C602A 8000-00010-004 Capacitor, Fixed, Ceramic, 0.01µF, 50V

C604 8000-00010-028 Capacitor, Fixed, Ceramic, 5pF, 50V

C605

8000-00010-004

Capacitor, Fixed, Ceramic, 0.01µF, 50V

C608 8000-00010-034 Capacitor, Fixed, Electrolytic, 10µF, 25V

C609

8000-00010-005

Capacitor, Fixed, Ceramic, 0.1µF, 50V

C610 8000-00010-004 Capacitor, Fixed, Ceramic, 0.01µF, 50V

C611 8000-00010-005 Capacitor, Fixed, Ceramic, 0.1µF, 50V

C612 8000-00010-004 Capacitor, Fixed, Ceramic, 0.01µF, 50V

C614

8000-00010-005

Capacitor, Fixed, Ceramic, 0.1µF, 50V

C624 8000-00010-005 Capacitor, Fixed, Ceramic, 0.1µF, 50V

C632 8000-00010-030 Capacitor, Fixed, Ceramic, 100pF, 50V

C671 8000-00010-036 Capacitor, Fixed, Ceramic, 1000pF, 50V

D1 8000-00010-020 Diode, 1N60

D2 8000-00010-020 Diode, 1N60

D3 8000-00010-020 Diode, 1N60

D4

8000-00010-020

Diode, 1N60

NoobowSystems Lab. Tomioka, Japan 2003 http://www.noobowsystems.com/ Page 38 / 56

SBE SB-36 OPERATION MANUAL

SYM PART NUMBER DESCRIPTION

D5 8000-00010-020 Diode, 1N60

D6 8000-00010-020 Diode, 1N60

D7 8000-00010-020 Diode, 1N60

D8 8000-00010-020 Diode, 1N60

D9 8000-00010-020 Diode, 1N60

D10

8000-00010-020

Diode, 1N60

D205 8000-00010-020 Diode, 1N60

D206

8000-00010-020

Diode, 1N60

L601 8000-00010-039 Choke, RFC

L602 8000-00010-039 Choke, RFC

T9 8000-00010-038 Transformer, 9 MHz

T9A 8000-00010-038 Transformer, 9 MHz

T10 8000-00010-038 Transformer, 9 MHz

T11 8000-00010-038 Transformer, 9 MHz

T12

8000-00010-038

Transformer, 9 MHz

TR6 8000-00010-018 Transistor, 2SK30

TR7

8000-00010-017

Transistor, 2SK30

TR8 4804-00003 Integrated Circuit, µA-703

TR9 8000-00010-018 Transistor, 2SK30

TR50 8000-00010-002 Transistor, 2SC458

TR51 8000-00010-018 Transistor, 2SK30

TR52 8000-00010-019 Transistor, 2SA495

TR53 8000-00010-019 Transistor, 2SA495

VC1 8000-00010-037 Capacitor, Variable, 30pF

VR5 8000-00010-023 Resistor, Variable, 500Ω

VR5N 8000-00010-027 Resistor, Variable, 100KΩ

8000-00010-040 Filter, Crystal, 9 MHz, Upper

8000-00010-041 Filter, Crystal, 9 MHz, Lower

8000-00010-046 Filter, Crystal, 9 MHz, CW

8000-00010-042 Socket for RL1

8000-00010-242 Filter, Crystal, CW

NoobowSystems Lab. Tomioka, Japan 2003 http://www.noobowsystems.com/ Page 39 / 56

SBE SB-36 OPERATION MANUAL

FEP-503 DRIVER RF PRE MIXER AND OSCILLATOR PC BOARD

SYM PART NUMBER DESCRIPTION

C46 8000-00010-050 Capacitor, Fixed, Ceramic, 30pF, 500V

C47 8000-00010-048 Capacitor, Fixed, Ceramic, 5pF, 500V

C48 8000-00010-054 Capacitor, Fixed, Ceramic, 0.01µF, 500V

C49 8000-00010-048 Capacitor, Fixed, Ceramic, 5pF, 500V

C50 8000-00010-048 Capacitor, Fixed, Ceramic, 5pF, 500V

C50T 8000-00010-074 Capacitor, Fixed, 1200pF, 500V

C51T 8000-00010-075 Capacitor, Fixed, 68pF, 500V

C52 8000-00010-053 Capacitor, Fixed, Ceramic, 0.005µF, 500V

C53 8000-00010-053 Capacitor, Fixed, Ceramic, 0.005µF, 500V

C54 8000-00010-050 Capacitor, Fixed, Ceramic, 30pF, 500V

C5s 8000-00010-053 Capacitor, Fixed, Ceramic, 0.005µF, 500V

C56 8000-00010-053 Capacitor, Fixed, Ceramic, 0.005µF, 500V

C57 8000-00010-050 Capacitor, Fixed, Ceramic, 30pF, 500V

C58 8000-00010-048 Capacitor, Fixed, Ceramic, 5pF, 500V

C59 8000-00010-052 Capacitor, Fixed, Ceramic, 0.001µF, 500V

C60 8000-00010-053 Capacitor, Fixed, Ceramic, 0.005µF, 500V

C61 8000-00010-053 Capacitor, Fixed, Ceramic, 0.005µF, 500V

C62 8000-00010-060 Capacitor, Fixed, Ceramic, 330pF, 500V

C63 8000-00010-054 Capacitor, Fixed, Ceramic, 0.01µF, 500V

C64 8000-00010-052 Capacitor, Fixed, Ceramic, 0.001µF, 500V

C65 8000-00010-054 Capacitor, Fixed, Ceramic, 0.01µF, 500V

C66 8000-00010-053 Capacitor, Fixed, Ceramic, 0.005µF, 500V

C67 8000-00010-059 Capacitor, Fixed, Mica, 250pF, 500V

C68 8000-00010-057 Capacitor, Fixed, Mica, 100pF, 500V

C69 8000-00010-058 Capacitor, Fixed, Mica, 150pF, 500V

C70 8000-00010-059 Capacitor, Fixed, Mica, 250pF, 500V

C73 8000-00010-053 Capacitor, Fixed, Ceramic, 0.005µF, 500V

C74 8000-00010-053 Capacitor, Fixed, Ceramic, 0.005µF, 500V

C75 8000-00010-053 Capacitor, Fixed, Ceramic, 0.005µF, 500V

C76 8000-00010-060 Capacitor, Fixed, Ceramic, 330pF, 500V

C77 8000-00010-005 Capacitor, Fixed, Ceramic, 0.1µF, 50V

C625 8000-00010-005 Capacitor, Fixed, Ceramic, 0.1µF, 50V

C626 8000-00010-054 Capacitor, Fixed, Ceramic, 0.01µF, 500V

C627 8000-00010-052 Capacitor, Fixed, Ceramic, 0.001µF, 500V

C628 8000-00010-054 Capacitor, Fixed, Ceramic, 0.01µF, 500V

C631 8000-00010-069 Capacitor, Fixed, 50pF, 500

C632 8000-00010-053 Capacitor, Fixed, Ceramic, 0.005µF, 500V

C633 8000-00010-053 Capacitor, Fixed, Ceramic, 0.005µF, 500V

C634 8000-00010-053 Capacitor, Fixed, Ceramic, 0.005 mid, 500V

C635 8000-00010-053 Capacitor, Fixed, Ceramic, 0.005µF, 500V

C636 8000-00010-056 Capacitor, Fixed, Mylar, 0.1µF, 250V

NoobowSystems Lab. Tomioka, Japan 2003 http://www.noobowsystems.com/ Page 40 / 56

SBE SB-36 OPERATION MANUAL

SYM PART NUMBER DESCRIPTION

C674 8000-00010-053 Capacitor, Fixed, Ceramic, 0.005µF, 500V

C675 8000-00010-053 Capacitor, Fixed, Ceramic, 0.005µF, 500V

C677 8000-00010-049 Capacitor, Fixed, Ceramic, 10pF, 500V

C678 8000-00010-054 Capacitor, Fixed, Ceramic, 0.01µF, 500V

C679 8000-00010-054 Capacitor, Fixed, Ceramic, 0.01µF, 500V

C681 8000-00010-061 Capacitor, Fixed, Electrolytic, 10µF, 160V

C801 8000-00010-053 Capacitor, Fixed, Ceramic, 0.005µF, 500V

L9 8000-00010-254 Coil, 28 MHz

L10 8000-00010-255 Coil, 21 MHz

L10A 8000-00010-259 Coil, 21.2 MHz

L11 8000-00010-256 Coil, 14 MHz

L12 8000-00010-257 Coil, 7 MHz

L13 8000-00010-258 Coil, 3.5 MHz

L14 8000-00010-076 Coil, 28 MHz

L15 8000-00010-077 Coil, 21 MHz

L16 8000-00010-078 Coil, 14 MHz

L17 8000-00010-079 Coil, 7 MHz

L18 8000-00010-080 Coil, 3.5 MHz

L19 8000-00010-081 Coil, 28 MHz

L20 8000-00010-082 Coil, 21 MHz

L21 8000-00010-083 Coil, 14 MHz

L22 8000-00010-084 Coil, 7 MHz

L23 8000-00010-085 Coil, 3.5 MHz

L24 8000-00010-260 Coil, 9MHz

L26 8000-00010-064 Choke

L27 8000-00010-065 Choke, RFC

L28 8000-00010-067 Choke

L29 8000-00010-065 Choke, RFC

L29A 8000-00010-065 Choke, RFC

TR10 8000-00010-046 Transistor, 2SC717

TR11 8000-00010-046 Transistor, 2SC717

V1 8000-00010-088 Tube, 6EJ7

V2 8000-00010-089 Tube, 6BQ5

V3 8000-00010-091 Tube, 6Aw8

V4 8000-00010-090 Tube, 6BZ5



8000-00010-062 Socket, 7-Pin



8000-00010-063 Socket, 9-Pin

NoobowSystems Lab. Tomioka, Japan 2003 http://www.noobowsystems.com/ Page 41 / 56

SBE SB-36 OPERATION MANUAL

FEP-504 CRYSTAL OSCILLATOR PC BOARD

SYM PART NUMBER DESCRIPTION

L2 8000-00010-093 Coil, Oscillator, 28 MHz

L3 8000-00010-094 Coil, Oscillator

L4 8000-00010-094 Coil, Oscillator

L5 8000-00010-095 Coil, Oscillator

L6 8000-00010-095 Coil, Oscillator

VC2 8000-00010-097 Capacitor, Variable, 30pF

VC3 8000-00010-097 Capacitor, Variable, 30pF

VC4 8000-00010-097 Capacitor, Variable, 30pF

VC5 8000-00010-097 Capacitor, Variable, 30pF

VC6 8000-00010-097 Capacitor, Variable, 30pF

VC7 8000-00010-097 Capacitor, Variable, 30pF

VC8 8000-00010-097 Capacitor, Variable, 30pF

VC9 8000-00010-097 Capacitor, Variable, 30pF

X1 8000-00010-098 Crystal, 44.0 MHz

X2 8000-00010-099 Crystal, 43.5 MHz

X3 8000-00010-100 Crystal, 43.0 MHz

X4 8000-00010-101 Crystal, 42.5 MHz

X5 8000-00010-102 Crystal, 35.5 MHz

X6 8000-00010-103 Crystal, 28.5 MHz

X7 8000-00010-104 Crystal, 21.5 MHz

8000-00010-096 Socket, Crystal

NoobowSystems Lab. Tomioka, Japan 2003 http://www.noobowsystems.com/ Page 42 / 56

SBE SB-36 OPERATION MANUAL

FEP-504A HF CRYSTAL PRINTED CIRCUIT PC BOARD

SYM

PART NUMBER

DESCRIPTION

VC1 8000-00010-084 Capacitor, Fixed, Ceramic, Trimmer, 30pF

VC3 8000-00010-084 Capacitor, Fixed, Ceramic, Trimmer, 30pF

VC4 8000-00010-084 Capacitor, Fixed, Ceramic, Trimmer, 30pF

VC5 8000-00010-084 Capacitor, Fixed, Ceramic, Trimmer, 30pF

VC5A 8000-00010-084 Capacitor, Fixed, Ceramic, Trimmer, 30pF

VC6 8000-00010-084 Capacitor, Fixed, Ceramic, Trimmer, 30pF

VC6A 8000-00010-084 Capacitor, Fixed, Ceramic, Trimmer, 30pF

VC7 8000-00010-084 Capacitor, Fixed, Ceramic, Trimmer, 30pF

VC8 8000-00010-084 Capacitor, Fixed, Ceramic, Trimmer, 30pF

VC9 8000-00010-084 Capacitor, Fixed, Ceramic, Trimmer, 30pF

X1 8000-00010-216 Crystal, 44.0 MHz

X2 8000-00010-215 Crystal, 43.5 MHz

X3 8000-00010-211 Crystal, 43.0 MHz

X4 8000-00010-213 Crystal, 42.5 MHz

X5 8000-00010-212 Crystal, 35.5 MHz

X6 8000-00010-211 Crystal, 28.5 MHz

X7 8000-00010-210 Crystal, 21.5 MHz

8000-00010-228 Socket, Crystal, HC-25U

8000-00010-243 Printed Circuit Board, FEP-504A

NoobowSystems Lab. Tomioka, Japan 2003 http://www.noobowsystems.com/ Page 43 / 56

SBE SB-36 OPERATION MANUAL

FEP-505 VOX AND ANTI-TRIP PC BOARD

SYM

PART NUMBER DESCRIPTION

C77 8000-00010-007 Capacitor, Fixed, Electrolytic, 10µF, 16v

C77A 8000-00010-007 Capacitor, Fixed, Electrolytic, 10µF, 16v

C78 8000-00010-007 Capacitor, Fixed, Electrolytic, 10µF, 16v

C78A 8000-00010-007 Capacitor, Fixed, Electrolytic, 10µF, 16v

C79 8000-00010-007 Capacitor, Fixed, Electrolytic, 10µF, 16v

C79A 8000-00010-009 Capacitor, Fixed, Electrolytic, 47µF, 25V

C639 8000-00010-113 Capacitor, Fixed, Ceramic, 5000pF, 50V

C640 8000-00010-113 Capacitor, Fixed, Ceramic, 5000pF, 50V

C641 8000-00010-007 Capacitor, Fixed, Electrolytic, 10µF, 16V

C642 8000-00010-113 Capacitor, Fixed, Ceramic, 5000pF, 50V

D12 8000-00010-020 Diode, 1N60

D13 8000-00010-020 Diode, 1N60

D14 8000-00010-020 Diode, 1N60

D15 8000-00010-020 Diode, 1N60

TR12 8000-00010-002 Transistor, 2SC458

TR13 8000-00010-002 Transistor, 2SC458

TR13A 8000-00010-002 Transistor, 2SC458

TR14 8000-00010-105 Transistor, 2SC374

TR15 8000-00010-002 Transistor, 2SC458

VR501 8000-00010-112 Resistor, Variable, 50kΩ

VR502 8000-00010-112 Resistor, Variable, 50kΩ

NoobowSystems Lab. Tomioka, Japan 2003 http://www.noobowsystems.com/ Page 44 / 56

SBE SB-36 OPERATION MANUAL

FEP-506 CARRIER OSCILLATOR PC BOARD

SYM

PART NUMBER DESCRIPTION

C84 8000-00010-121 Capacitor, Fixed, Mica, 100pF, 50V

C87 8000-00010-122 Capacitor, Fixed, Mica, 200pF, 50V

C89 8000-00010-119 Capacitor, Fixed, Mica, 27pF, 50V

C90 8000-00010-120 Capacitor, Fixed, Mica, 47pF, 50V

C91 8000-00010-010 Capacitor, Fixed, Ceramic, 0.02µF, 50V

C643 8000-00010-119 Capacitor, Fixed, Mica 27pF, 50V

C650 8000-00010-004 Capacitor, Fixed, Ceramic, 0.1µF, 50V

C651 8000-00010-004 Capacitor, Fixed, Ceramic, 0.1µF, 50V

C652 8000-00010-004 Capacitor, Fixed, Ceramic, 0.1µF, 50V

RL3 8000-00010-015 Relay, 12 VDC

T13 8000-00010-124 Transformer, 9 MHz

T14 8000-00010-124 Transformer, 9 MHz

TR17 8000-00010-002 Transistor, 2SC458

TR19 8000-00010-002 Transistor, 2SC458

TR20 8000-00010-002 Transistor, 2sC458

VC201 8000-00010-123 Capacitor, Variable, 30pF

8000-00010-126 Plug, 11-Pin

FEP-507 AF POWER AMPLIFIER PC BOARD

SYM

PART NUMBER DESCRIPTION

C85A 8000-00010-116 Capacitor, Fixed, Electrolytic, 220µF, 16V

C95 8000-00010-009 Capacitor, Fixed, Electrolytic, 47µF, 25V

C96 8000-00010-115 Capacitor, Fixed, Electrolytic, 47µF, 16V

C97 8000-00010-114 Capacitor, Fixed, Electrolytic, 4.7µF, 16V

C98A 8000-00010-004 Capacitor, Fixed, Ceramic, 0.01µF, 50V

C98B 8000-00010-005 Capacitor, Fixed, Ceramic, 0.1µF, 50V

C99 8000-00010-004 Capacitor, Fixed, Ceramic, 0.01µF, 50V

C100 8000-00010-009 Capacitor, Fixed, Electrolytic, 47µF, 25V

C101 8000-00010-114 Capacitor, Fixed, Electrolytic, 4.7µF, 16V

D17 8000-00010-109 Diode, 1S155

D18 8000-00010-021 Diode, 10D1

D19 8000-00010-021 Diode, 10D1

TR22 8000-00010-107 Transistor, 2SC495

TR23 8000-00010-108 Transistor, 2SA496

TR24 8000-00010-106 Transistor, 2SC733GR

TR25 8000-00010-019 Transistor, 2SA495

VR10 8000-00010-111 Resistor, Variable, 10kΩ

VR11 8000-00010-161 Resistor, Variable, 1kΩ

NoobowSystems Lab. Tomioka, Japan 2003 http://www.noobowsystems.com/ Page 45 / 56

SBE SB-36 OPERATION MANUAL

FEP-508 RECEIVER IF AND AGC AMPLIFIER PC BOARD

SYM PART NUMBER DESCRIPTION

C102 8000-00010-004 Capacitor, Fixed, Ceramic, 0.01µF, 50V

C103 8000-00010-004 Capacitor, Fixed, Ceramic, 0.01µF, 50V

C104 8000-00010-004 Capacitor, Fixed, Ceramic, 0.01µF, 50V

C105 8000-00010-036 Capacitor, Fixed, Ceramic, 1000pF, 50V

C106 8000-00010-010 Capacitor, Fixed, Ceramic, 0.02µF, 50V

C107 8000-00010-010 Capacitor, Fixed, Ceramic, 0.02µF, 50V

C108 8000-00010-010 Capacitor, Fixed, Ceramic, 0.02µF, 50V

C109 8000-00010-010 Capacitor, Fixed, Ceramic, 0.02µF, 50V

C110 8000-00010-010 Capacitor, Fixed, Ceramic, 0.02µF, 50V

C111 8000-00010-010 Capacitor, Fixed, Ceramic, 0.02µF, 50V

Cll2 8000-00010-010 Capacitor, Fixed, Ceramic, 0.02µF, 50V

Cll3 8000-00010-005 Capacitor, Fixed, Ceramic, 0.1µF, 50V

Cll4 8000-00010-010 Capacitor, Fixed, Ceramic, 0.02µF, 50V

Cll6 8000-00010-032 Capacitor, Fixed, Styrol, 22pF, 50V

C644 8000-00010-034 Capacitor, Fixed, Electrolytic, 10µF, 25V

C645 8000-00010-005 Capacitor, Fixed, Ceramic, 0.1µF, 50V

C646 8000-00010-010 Capacitor, Fixed, Ceramic, 0.02µF, 50V

C647 8000-00010-028 Capacitor, Fixed, Ceramic, 5pF, 50V

C648 8000-00010-035 Capacitor, Fixed, Electrolytic, 330µF, 10V

C649 8000-00010-010 Capacitor, Fixed, Ceramic, 0.02µF, 50V

C650 8000-00010-033 Capacitor, Fixed, Electrolytic, 1.0µF, 16V

C661 8000-00010-005 Capacitor, Fixed, Ceramic, 0.1µF, 50V

C670 8000-00010-036 Capacitor, Fixed, Ceramic, 1000pF, 50V

C672 8000-00010-031 Capacitor, Fixed, Ceramic, 0.01µF, 500V

C826 8000-00010-010 Capacitor, Fixed, Ceramic, 0.02µF, 50V

D18 8000-00010-020 Diode, 1N60

D19 8000-00010-020 Diode, 1N60

D20 8000-00010-020 Diode, 1N60

D21 8000-00010-020 Diode, 1N60

D22 8000-00010-020 Diode, 1N60

D23 8000-00010-020 Diode, 1N60

D24 8000-00010-022 Diode, RD-9A

D25 8000-00010-020 Diode, 1N60

D211 8000-00010-021 Diode, 10D-1

L50 8000-00010-039 Choke, RFC

L605 8000-00010-039 Choke, RFC

T15 8000-00010-038 Transformer, 9 MHz

T16 8000-00010-038 Transformer, 9 MHz

T17 8000-00010-038 Transformer, 9 MHz

T18 8000-00010-038 Transformer, 9 MHz

TR26 8000-00010-002 Transistor, 2SC458

NoobowSystems Lab. Tomioka, Japan 2003 http://www.noobowsystems.com/ Page 46 / 56

SBE SB-36 OPERATION MANUAL

SYM PART NUMBER DESCRIPTION

TR27 8000-00010-002 Transistor, 2SC458

TR28 8000-00010-016 Transistor, 2SK25

TR29 8000-00010-002 Transistor, 2SC458

VR12 8000-00010-161 Resistor, Variable, 1kΩ

VR14 8000-00010-025 Resistor, Variable, 3kΩ

VR53 8000-00010-026 Resistor, Variable, 10kΩ

NoobowSystems Lab. Tomioka, Japan 2003 http://www.noobowsystems.com/ Page 47 / 56

SBE SB-36 OPERATION MANUAL

FEP-509 VFO PC BOARD

SYM

PART NUMBER DESCRIPTION

C120 8000-00010-131 Capacitor, Fixed, Mica, 5pF, 50V

C121 8000-00010-136 Capacitor, Fixed, Mica, 250pF, 50V

C122 8000-00010-113 Capacitor, Fixed, Ceramic, 5000pF, 50V

C123 8000-00010-134 Capacitor, Fixed, Mica, 500pF, 50V

C124 8000-00010-135 Capacitor, Fixed, Mica, 800pF, 50V

C127 8000-00010-132 Capacitor, Fixed, Mica, 50pF, 50V

C128 8000-00010-005 Capacitor, Fixed, Ceramic, 0.1µF, 50V

C128A 8000-00010-005 Capacitor, Fixed, Ceramic, 0.1µF, 50V

C129 8000-00010-137 Capacitor, Fixed, Ceramic, 1000pF, 50V

C130 8000-00010-137 Capacitor, Fixed, Ceramic, 1000pF, 50V

C131 8000-00010-005 Capacitor, Fixed, Ceramic, 0.1µF, 50V

C133 8000-00010-133 Capacitor, Fixed, Mica, 150pF, 50V

C134 8000-00010-137 Capacitor, Fixed, Ceramic, 1000pF, 50V

C135 8000-00010-010 Capacitor, Fixed, Ceramic, 0.02µF, 50V

C651 8000-00010-005 Capacitor, Fixed, Ceramic, 0.1µF, 50V

C696 8000-00010-004 Capacitor, Fixed, Ceramic, 0.01µF, 50V

C698 8000-00010-004 Capacitor, Fixed, Ceramic, 0.01µF, 50V

C698A 8000-00010-134 Capacitor, Fixed, Mica, 500pF, 50V

c750 8000-00010-004 Capacitor, Fixed, Ceramic, 0.01µF, 50V

D26 8000-00010-020 Diode, 1N60

D27 8000-00010-020 Diode, 1N60

D29 8000-00010-128 Diode, 1S338

D60 8000-00010-020 Diode, 1N60

D211 8000-00010-127 Diode, 1S48

L31 8000-00010-140 Choke

L32 8000-00010-139 Choke

L34 8000-00010-141 Choke

L509 8000-00010-142 Choke

TR30 8000-00010-016 Transistor, 2SK25

TR31 8000-00010-018 Transistor, 2SK30

TR32 8000-00010-002 Transistor, 2SC458

TR48 8000-00010-002 Transistor, 2SC458

VC509 8000-00010-138 Capacitor, Variable, 5-54pF

VR51 8000-00010-129 Resistor, Variable, 3kΩ

VR52 8000-00010-130 Resistor, Variable, 5kΩ

NoobowSystems Lab. Tomioka, Japan 2003 http://www.noobowsystems.com/ Page 48 / 56

SBE SB-36 OPERATION MANUAL

FEP-510 COUNTER PC BOARD

SYM

PART NUMBER DESCRIPTION

Cl 8000-00010-097 Capacitor, Fixed, Mica, 330pF, 50V

C2 8000-00010-097 Capacitor, Fixed, Mica, 330pF, 50V

C3 8000-00010-097 Capacitor, Fixed, Mica, 330pF, 50V

C4 8000-00010-097 Capacitor, Fixed, Mica, 330pF, 50V

C5 8000-00010-097 Capacitor, Fixed, Mica, 330pF, 50V

C6 8000-00010-097 Capacitor, Fixed, Mica, 330pF, 50V

Cl 8000-00010-091 Capacitor, Fixed, Styrol, 1500pF, 50V

C8 8000-00010-126 Capacitor, Fixed, Ceramic, 0.01µF, 500V

C9 8000-00010-117 Capacitor, Fixed, Mylar, 0.01µF, 50V

C10 8000-00010-117 Capacitor, Fixed, Mylar, 0.01µF, 50V

C11 8000-00010-117 Capacitor, Fixed, Mylar, 0.01µF, 50V

Cl2 8000-00010-117 Capacitor, Fixed, Mylar, 0.01µF, 50V

Cl3 8000-00010-118 Capacitor, Fixed, Mylar, 0.lµF, 50V

Cl4 8000-00010-118 Capacitor, Fixed, Mylar, 0.1µF, 50V

C15 8000-00010-127 Capacitor, Fixed, Ceramic, 0.1µF, 50V

Cl6 8000-00010-127 Capacitor, Fixed, Ceramic, 0.1µF, 50V

Cl7 8000-00010-127 Capacitor, Fixed, Ceramic, 0.1µF, 50V

Cl8 8000-00010-066 Capacitor, Fixed, Electrolytic, 33µF, 16V

Cl9 8000-00010-066 Capacitor, Fixed, Electrolytic, 33µF, 16V

C20 8000-00010-066 Capacitor, Fixed, Electrolytic, 33µF, 16V

D1 8000-00010-027 Diode, RD-5A

D2 8000-00010-027 Diode, RD-5A

IC1 8000-00010-149 Integrated Circuit, FEP-505

IC2 8000-00010-149 Integrated Circuit, FEP-505

IC3 8000-00010-149 Integrated Circuit, FEP-505

IC4 8000-00010-150 Integrated Circuit, FEP-506

IC5 8000-00010-150 Integrated Circuit, FEP-506

IC6 8000-00010-150 Integrated Circuit, FEP-506

IC7 8000-00010-148 Integrated Circuit, FEP-504

IC8 8000-00010-145 Integrated Circuit, FEP-501

IC9 8000-00010-144 Integrated Circuit, FEP-500

IC10 8000-00010-144 Integrated Circuit, FEP-500

IC11 8000-00010-144 Integrated Circuit, FEP-500

ICl2 8000-00010-146 Integrated Circuit, FEP-502

ICl3 8000-00010-146 Integrated Circuit, FEP-502

ICl4 8000-00010-146 Integrated Circuit, FEP-5o2

IC15 8000-00010-146 Integrated Circuit, FEP-502

ICl6 8000-00010-144 Integrated Circuit, FEP-500

ICl7 8000-00010-144 Integrated Circuit, FEP-500

ICl8 8000-00010-144 Integrated Circuit, FEP-500

IC19 8000-00010-151 Integrated Circuit, FEP-507

NoobowSystems Lab. Tomioka, Japan 2003 http://www.noobowsystems.com/ Page 49 / 56

SBE SB-36 OPERATION MANUAL

SYM

PART NUMBER DESCRIPTION

IC20 8000-00010-146 Integrated Circuit, FEP-502

IC21 8000-00010-147 Integrated Circuit, FEP-503

IC22 8000-00010-148 Integrated Circuit, FEP-504

IC23 8000-00010-148 Integrated Circuit, FEP-504

IC24 8000-00010-146 Integrated Circuit, FEP-502

IC25 8000-00010-148 Integrated Circuit, FEP-504

IC26 8000-00010-144 Integrated Circuit, FEP-500

IC27 8000-00010-144 Integrated Circuit, FEP-500

IC28 8000-00010-144 Integrated Circuit, FEP-500

IC29 8000-00010-150 Integrated Circuit, FEP-506

IC30 8000-00010-149 Integrated Circuit, FEP-505

V1 8000-00010-153 Tube, Nixie

V2 8000-00010-153 Tube, Nixie

V3 8000-00010-153 Tube, Nixie

V4 8000-00010-153 Tube, Nixie

V5 8000-00010-153 Tube, Nixie

V6 8000-00010-153 Tube, Nixie



8000-00010-240 Printed Circuit Board, FEP-S10

NoobowSystems Lab. Tomioka, Japan 2003 http://www.noobowsystems.com/ Page 50 / 56

SBE SB-36 OPERATION MANUAL

FEP-511 5.6 MHz OSCILLATOR/UPPER AND LOWER LIMIT LIGHT PC BOARD

SYM

PART NUMBER

DESCRIPTION

Cl 8000-00010-162 Capacitor, Fixed, Mica, 30pF, 50V

C2 8000-00010-010 Capacitor, Fixed, Ceramic, 0.02µF, 50V

C3 8000-00010-121 Capacitor, Fixed, Mica, 100pF, 50V

C4 8000-00010-059 Capacitor, Fixed, Mica, 250pF, 50V

C5 8000-00010-120 Capacitor, Fixed, Mica, 50pF, 50V

C5B 8000-00010-120 Capacitor, Fixed, Mica, 50pF, 50V

C6 8000-00010-004 Capacitor, Fixed, Ceramic, 0.01µF, 50V

C7 8000-00010-120 Capacitor, Fixed, Mica, 50pF, 50V

C8 8000-00010-055 Capacitor, Fixed, Styrol, 500pF, 50V

C9 8000-00010-005 Capacitor, Fixed, Ceramic, 0.1µF, 50V

C10 8000-00010-005 Capacitor, Fixed, Ceramic, 0.1µF, 50V

C11 8000-00010-055 Capacitor, Fixed, Styrol, 500pF, 50V

C13A 8000-00010-164 Capacitor, Fixed, Mylar, 0.1µF, 50V

C13B 8000-00010-163 Capacitor, Fixed, Styrol, 1000pF, 50V

C14 8000-00010-155 Capacitor, Fixed, Styrol, 1500pF, 50V

C15 8000-00010-059 Capacitor, Fixed, Mica, 250pF, 50V

C16 8000-00010-165 Capacitor, Fixed, Mylar, 0.5µF, 50V

C17 8000-00010-165 Capacitor, Fixed, Mylar, 0.5µF, 50V

C18 8000-00010-004 Capacitor, Fixed, Ceramic, 0.01µF, 50V

C19 8000-00010-004 Capacitor, Fixed, Ceramic, 0.01µF, 50V

C20a 8000-00010-164 Capacitor, Fixed, Mylar, 0.1µF, 50V

C20b 8000-00010-163 Capacitor, Fixed, Styrol, 1000pF, 50V

C20d 8000-00010-122 Capacitor, Fixed, Mica, 100pF, 50V

C20e 8000-00010-164 Capacitor, Fixed, Mylar, 0.1µF, 50V

C003 8000-00010-169 Capacitor, Fixed, Electrolytic, 330µF, 16V

C004 8000-00010-174 Capacitor, Fixed, Ceramic, 0.005µF, 500V

C005 8000-00010-174 Capacitor, Fixed, Ceramic, 0.005µF, 500V

C006 8000-00010-005 Capacitor, Fixed, Ceramic, 0.1µF, 50V

C007 8000-00010-005 Capacitor, Fixed, Ceramic, 0.1µF, 50V

C008 8000-00010-17? Capacitor, Fixed, Ceramic, 0.005µF, 500V

C206 8000-00010-005 Capacitor, Fixed, Ceramic, 0.1µF, 50V

C501 8000-00010-115 Capacitor, Fixed, Electrolytic, 47µF, 16V

C503 8000-00010-007 Capacitor, Fixed, Electrolytic, 10µF, 16V

C503a 8000-00010-005 Capacitor, Fixed, Ceramic, 0.1µF, 50V

C504a 8000-00010-122 Capacitor, Fixed, Mica, 1000pF, 50V

C504b 8000-00010-004 Capacitor, Fixed, Ceramic, 0.01µF, 50V

C506 8000-00010-168 Capacitor, Fixed, Electrolytic, 100µF, 10V

D1 8000-00010-152 Diode, RD-5A

D2 8000-00010-152 Diode, RD-5A

L1 8000-00010-170 Coil

NoobowSystems Lab. Tomioka, Japan 2003 http://www.noobowsystems.com/ Page 51 / 56

SBE SB-36 OPERATION MANUAL

SYM

PART NUMBER

DESCRIPTION

L2 8000-00010-171 Coil

L3 8000-00010-172 Coil

TR33 8000-00010-002 Transistor, 2SC458

TR34 8000-00010-002 Transistor, 2SC458

TR35 8000-00010-002 Transistor, 2SC458

TR36 8000-00010-002 Transistor, 2SC458

TR37 8000-00010-002 Transistor, 2SC458

TR38 8000-00010-002 Transistor, 2SC458

TR39 8000-00010-002 Transistor, 2SC458

TR40 8000-00010-002 Transistor, 2SC458

TR41 8000-00010-105 Transistor, 2SC374

TR42 8000-00010-002 Transistor, 2SC458

TR43 8000-00010-002 Transistor, 23C458

TR44 8000-00010-002 Transistor, 2SC458

TR45 8000-00010-160 Transistor, 2SC373

TR46 8000-00010-175 Transistor, 2SC491

TR47 8000-00010-002 Transistor, 2SC458

R503 8000-00010-185 Resistor, Fixed, 0.5Ω, 2W

VC1 8000-00010-123 Capacitor, Variable, 30pF

VR18 8000-00010-161 Resistor, Variable, 1kΩ

X1 8000-00010-159 Crystal, 5.6 MHz

NoobowSystems Lab. Tomioka, Japan 2003 http://www.noobowsystems.com/ Page 52 / 56

SBE SB-36 OPERATION MANUAL

FEP-531 POWER SUPPLY PC BOARD

SYM

PART NUMBER DESCRIPTION

C504 8000-00010-177 Capacitor, Fixed, Electrolytic, 100µF, 250V

C505 8000-00010-178 Capacitor, Fixed, Electrolytic, 470µF, 16V

C506 8000-00010-179 Capacitor, Fixed, Electrolytic, 1000µF, 35V

C507 8000-00010-179 Capacitor, Fixed, Electrolytic, 1000µF, 35V

D50l 8000-00010-176 Diode, 10D-10

D502 8000-00010-176 Diode, 10D-10

D503 8000-00010-176 Diode, 10D-10

D504 8000-00010-176 Diode, 10D-10

D506 8000-00010-176 Diode, 10D-10

D507 8000-00010-176 Diode, 10D-10

D508 8000-00010-176 Diode, 10D-10

D509 8000-00010-176 Diode, 10D-10

D510 8000-00010-176 Diode, 10D-10

D511 8000-00010-176 Diode, 10D-10

D512 8000-00010-176 Diode, 10D-10

D513 8000-00010-021 Diode, 10D-1

D514 8000-00010-021 Diode, 10D-1

D515 8000-00010-021 Diode, 10D-l

D516 8000-00010-021 Diode, 10D-1

FEP-532 20V REGULATOR PC BOARD

SYM

PART NUMBER

DESCRIPTION

C511 8000-00010-005 Capacitor, Fixed, Ceramic, 0.1µF, 50V

C512 8000-00010-007 Capacitor, Fixed, Electrolytic, 10µF, 16V

C513 8000-00010-183 Capacitor, Fixed, Electrolytic, 220µF, 16V

D31 8000-00010-128 Diode, RD-16A

R512 8000-00010-180 Resistor, Fixed, 1Ω, 2W

TR45 8000-00010-002 Transistor, 2SC458

TR46 8000-00010-175 Transistor, 2SC491

TR47 8000-00010-002 Transistor, 2SC458

VR19 8000-00010-181 Resistor, Variable, 1kΩ



8000-00010-182 TR-46 Heat Sink



8000-00010-184 L Angle Bracket

NoobowSystems Lab. Tomioka, Japan 2003 http://www.noobowsystems.com/ Page 53 / 56

SBE SB-36 OPERATION MANUAL

AC POWER SUPPLY CHASSIS

SYM

PART NUMBER

DESCRIPTION

C5 8000-00010-073 Capacitor, Fixed, Electrolytic, 47µF, 500V

C5a 8000-00010-073 Capacitor, Fixed, Electrolytic, 47µF, 500V

C50l

Not Used 

C502

Not Used

C503 8000-00010-073 Capacitor, Fixed, Electrolytic, 47µF, 500V

C508 8000-00010-144 Capacitor, Fixed, Ceramic, 0.01µF, 1kV

R509 8000-00010-052 Resistor, Fixed, 1kΩ, 7 W

R510 8000-00010-053 Resistor, Fixed, 5kΩ, 10 W

T001 8000-00010-171 Transformer, Primary Power



8000-00010-238 Printed Circuit Board



8000-00010-226 Jack, Speaker



8000-00010-259 Bakelite Board, Spkr, Jack Mounting



8000-00010-227 Socket, 11-Pin



8000-00010-219 Relay



8000-00010-261 Speaker, 8Ω



8000-00010-260 Fuse Holder



8000-00010-262 Speaker Grill



8000-00010-263 Cabinet



8000-00010-265 Fuse, 5A Fast-Blo

NoobowSystems Lab. Tomioka, Japan 2003 http://www.noobowsystems.com/ Page 54 / 56

SBE SB-36 OPERATION MANUAL

SB-36 MAIN CHASSIS

SYM

PART NUMBER

DESCRIPTION

C25 8000-00010-207 Capacitor, Fixed, Ceramic, 0.005µF, 500V

C35 8000-00010-207 Capacitor, Fixed, Ceramic, 0.005µF, 500V

C45 8000-00010-207 Capacitor, Fixed, Ceramic, 0.005µF, 500V

C55 8000-00010-213 Capacitor, Fixed, Ceramic, 0.002µF, 3kV

C65 8000-00010-189 Capacitor, Fixed, Ceramic, 0.01µF, 1.4kV

C71 8000-00010-210 Capacitor, Fixed, Ceramic, 300pF, 500V

C74 8000-00010-210 Capacitor, Fixed, Ceramic, 300pF, 500V

C75 8000-00010-211 Capacitor, Fixed, Ceramic, 470pF, 1.6kV

C85 8000-00010-005 Capacitor, Fixed, Ceramic, 0.1µF, 50V

C674 8000-00010-209 Capacitor, Fixed, Ceramic, 0.002µF, 500V

C675 8000-00010-209 Capacitor, Fixed, Ceramic, 0.002µF, 500V

C695 8000-00010-212 Capacitor, Fixed, Ceramic, 150pF, 500V

C701 8000-00010-207 Capacitor, Fixed, Ceramic, 0.005µF, 500V

C702 8000-00010-207 Capacitor, Fixed, Ceramic, 0.005µF, 500V

C703 8000-00010-207 Capacitor, Fixed, Ceramic, 0.005µF, 500V

C710 8000-00010-212 Capacitor, Fixed, Ceramic, 150pF, 500V

C205 8000-00010-020 Diode, 1N60

L55 8000-00010-235 Choke

L75 8000-00010-234 Choke

L85 8000-00010-234 Choke

L205 8000-00010-230 Choke, Plate

L215 8000-00010-231 Coil, Tank

L225 8000-00010-232 Coil, Tank, 10 Meter

L305 8000-00010-233 Choke

L315 8000-00010-233 Choke

R15 8000-00010-228 Resistor, Fixed, 0.5Ω

R95 8000-00010-229 Resistor, Fixed, 5kΩ, 10 w

RL1 8000-00010-215 Relay, MH4

RL2 8000-00010-214 Relay, 4-Pole

S1 8000-00010-200 Switch, Mode

S2 8000-00010-202 Switch, Band

S3 8000-00010-201 Switch, 3-Position, Meter

S4 8000-00010-206 Switch, Noise Blanker

S5 8000-00010-203 Switch, AGC

S6 8000-00010-205 Switch, Push Button

S7 8000-00010-204 Switch, 2p-3T

S8 8000-00010-205 Switch, Push-Button

V5 8000-00010-092 Tube, 6KD6

V6 8000-00010-092 Tube, 6KD6

VC10 8000-00010-226 Capacitor, Variable

VC15 8000-00010-225 Capacitor, Variable, 10pF

NoobowSystems Lab. Tomioka, Japan 2003 http://www.noobowsystems.com/ Page 55 / 56

SBE SB-36 OPERATION MANUAL

SYM

PART NUMBER

DESCRIPTION

VC25 8000-00010-224 Capacitor, Variable, 280pF

VC35 8000-00010-227 Capacitor, Variable

VC45 8000-00010-223 Capacitor, Variable, 10pF

VR25 8000-00010-221 Resistor, Variable, 10kΩ

VR35 8000-00010-219 Resistor, Variable, 1MΩ

VR45 8000-00010-218 Resistor, Variable, 10kΩ

VR503 8000-00010-216 Resistor, Variable, 100kΩ

VR504 8000-00010-217 Resistor, Variable, 10kΩ

VR509 8000-00010-222 Resistor, Variable, 10kΩ

VR601 8000-00010-220 Resistor, Variable, 50k X 2Ω



8000-00010-236 Jack, 2-Pole



8000-00010-237 Lamp, RIT



8000-00010-238 Socket, 12-Pin



8000-00010-239 Capacitor, Plate, 6KD6



8000-00010-240 Meter, 300µA



8000-00010-241 Motor, AC



8000-00010-243 Knob, VFO



8000-00010-244 Knob, Plate Load



8000-00010-245 Knob, Pre-Selector



8000-00010-246 Knob, Mac Gain



8000-00010-247 Shield, Tube, 7-Pin Type



8000-00010-248 Shield, Tube, 9-Pin Type



8000-00010-249 Knob, Band Selector



8000-00010-250 Knob, RF Gain



8000-00010-261 Front Panel, Complete



8000-00010-262 Feet, Rubber



8000-00010-263 Feet, Metal



8000-00010-264 Capacitor, Fixed, Electrolytic, 1000µF, 16V



8000-00010-265 High Voltage Warning Tag



8000-00010-266 Jack Strip, Accessory Output



8000-00010-267 Terminal Strip, 4-Pose



8000-00010-268 Socket, Lamp, Push-On Type



8000-00010-269 Socket, Lamp, Bolt-On Type



8000-00010-270 Core, Transformer slug



8000-00010-271 Gear Assembly, VFO



8000-00010-272 Bezel, Front Panel

NoobowSystems Lab. Tomioka, Japan 2003 http://www.noobowsystems.com/ Page 56 / 56