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Page 2
INSTRUCTION AND OPERATING MANUAL
FOR
MODEL
POWER
Serial
SUPPLY
X26
and
710B
Above
HEWLETT -PACKARD COMPANY
395
PAGE MILL ROAD, PAL0 ALTO, CALIFORNIA, U.S.A.
Page 3
CAUTION
I
I
VOLTAGES WHICH ARE DANGEROUS TO LIFE ARE PRESENT
AT THE TERMINALS
I__---
----
--
AND
WITHIN THIS INSTRUMENT
CAUTION
IF
THIS INSTRUMENT IS EQUIPPED WITH 6L6 METAL TUBES
--_I_--
A
DANGEROUS VOLTAGE MAY BE PRESENT BETWEEN THE
_-----
6L6
METAL TUBE SHIELDS I AND THE CHASSIS.
I
Model 710B Power Supply
power for laboratory and production use.
I
variable between 100 and 360 volts and
vo%tage and applied load for any setting.
--__-
-
-____c
G
enera1 Descriotion
is
an
excellent source of direct current
The voltage output
is
practically in&pendent of either line
The noise and hum level
--
-.
-
-______p.
is
continuously
is
very low
for any condition of operation.
An alternatilng current output of
supply a maximum
of
5
amperes
is
6.
3
volts, center tapped, which will
included in the power supply for supplying
the filament,s of tubes.
This power supply may be used
bo
power
low
Bevel amplifier, constant
frequency oscillators, and any other equipment requiring a power supply of high
stability and
Difficulties in procuring
cause the electrical or physical values
struction manual.
performance of this instrument.
is
necessaryo eit,her the substitute value or the original value may be used.
low
noise level.
P
arts Substitutions
-
-
some
P
of the parts used
to
deviate from those shown in this in-
-~
in
These substntukions have been made so
Whenever replacement of any of these parts
this instrument may
as
not
to
impair the
,
9
\
+
9
rr
0
,
Page 4
Regulated Output Ratings:
--
INS T RU C TIONS
MODEL '7lOB
POWER SUPPLY
Soecifications
Voltage: 100 to
Current:
0
360
to '75 MA.
Maximum Output Ratings:
Current: 100 MA.
Filament Supply:
Regulation:
Approximately 1% for operating conditions within the Regulated Output
Ratings and for line voltage variations of 105 to 125 volts /210 to 250
volts
0
Noise and Hum:
Total noise and hum
in regulated Output Ratings.
Required Power Source:
Voltage: 105 to 125 volts/210
Frequency: 50
Wattage:
90
to
watts maximum.
volts DC.
6.3
volts AC COT.
is
less than
60
cps.
at
5A.
.,
005 volts for operating conditions with-
1--
to
250 volts,
.
~
0
4
9
N
14
Overal Dimensions:
8-3/4tt
high x
'7-3/411
Weight:
15 pounds.
a
0
4
Ih
Inspec tion
shipped and
-
-
This instrument has has been thoroughly tested and inspected before being
is
ready for use when received.
wide x 11 -5/8" deep.
Operating Instructions
-1-
Page 5
After the instrument
If
ceived in transit.
lined in the "Claim for Damage in Shipment" page
book.
any shipping damage
is
unpacked,
it
should be inspected for damage
is
found, follow the procedure out-
at
the back of this instruction
re-
Controls and Terminals
DC
ON
-
This switch controls the direct current supplied to the DC
binding posts and indicator lamp which
these binding posts.
AC
ON
-
This switch controls the power supplied to the instrument from
the power line.
VOLTAGE CONTROL
output voltage.
FUSE
a
-25
ampere cartridge fuse.
holder cap and inserting
FUSE
a
1.6
ampere cartridge fuse.
holder cap and inserting
a
230 V power line, an
this instrument must be of the "Slo-blo" type
Parts List.
tDC
the chassis ground terminal.
.25
AMP - The fuseholder, located on the control panel, contains
1.
6
AMP - The fuseholder, located on the control panel, contains
-B
GND - These three binding posts are the DC output terminals and
--
is
lighted while there
-
This variable resistor varies the direct current
The fuse may be replaced by unscrewing the fuse-
a
new fuse.,
The fuse may be replaced by unscrewing the fuse-
a
new fuse.
.8
ampere fuse should be used.
Whenever the instrument
is
voltage on
is
operated from
Replacement fuses for
as
specified in the Replaceable
CT,
6.
3V - These three binding posts are connected directly to the
secondary of the power transformer.
tap of this secondary.
Power Cable
these conductors carry power to the instrument while the third conductor (green
is
wire)
cable near the plug end of the cable and may be connected to
desirable to have a grounded instrument chassis,
Operation
TO THE OFF POSITION BEFORE
connected to the instrument chassis. The third wire projects from the
--
CAUTION - AVOID ELECTRIC SHOCK
-
The power cable consists
The CT terminal
MAKING
-2
ANY CONNECTIONS.
-
is
connected to the center
of
three conductors. Two of
a
ground when it
BY
TURNING THE
DC
SWITCH
6.
3V
is
Page 6
Connect the output terminals of the Model 710B to the load and connect
the power cable
AC
ON,
and allow the instrument
the VOLTAGE CONTROL for the desired voltage.
The Model 710B may be operated with either terminal of the
grourded.
Anyone of the three 6.3 terminals may be ground.
to
a 105-125 volts supply.
to
warm-up for about two minutes.
Turn the toggle switch to
DC
Adjust
DC
ON,
output
The instrument may be operated with th? DC output ungrounded.
a
usually results in
reversing the power cable plug or by connecting a -05
the +DC or
CAUTION
in this instrument.
the cover or bottom plate
Cover and Bottom
rear edges of the cover.
screws, one in each corner of the plate,
Tube Replacement
standard characteristics, without impairing the operation of the instrument.
Tubes with abnormal characteristics will usually cause poor regulation.
-DC
-
Voltages which are DANGEROUS
Remove the cover by unscrewing the ten screws located along the top and
Any tube in this instrument may be replaced with a new tube having RMA
slightly higher
terminal to the GND terminal.
Main tenan ce
Disconnect the instrument from the power line whenever
is
removed.
Fl
ate Removal--
The bottom plate can be removed by unscrewing four
--
hum
level Ixlt this may be corrected by
mf
capacitor from either
TO
LIFE are present with-
This
Voltage Control Adiustment
If the VOLTAGE CONTROL shifts
of from 100 to 360 volts, adjustment of R23 and R24 will be necessary.
--
-3-
so
that
it
does not give a voltage range
Page 7
-t
3
a
a
U
W
9
0
a
n
Page 8
Page 9
.
Model
710B
Top
View
Cover
Removed
Page 10
Model
710B Bottom
View
Bottom
Plate
Removed
Page 11
TABLE
OF
REPLACEABLE PARTS
Circuit
Ref.
a,
c1,
c4,
c5
C2 ab
C6
C7
abc
C8
Ri, R2,
R3, R4
-hp
-
De
s
cription Stock
Capacitor: fixed, electrolytic
40
pi,
450 vdcw
Capacitor: fixed, electrolytic,
40
ppf,
Capacitor: fixed, paper,
1
pf,
Capacitor: fixed, electrolytic, 18-8 HP
10, 10,40
Capacitor: fixed, electrolytic, 18-10
10
pf,
Resistor: fixed, composition, 25-100K B
100,000 ohms,
450 vdcw FPQ-444
600 vdcw Type:
pf,
150 vdcw
450 vdcw
+lO70,
,
2W HB 1041
18-40
18
-42
16- 1
No.
Mfr.
Designation
A
AEF
X
A
X
WB
*
-
1
P688
72
SL
Mfrs.
rt~3"
R5, R6
R7
R8, R9,
R14
R10
0
4a
R11
R12
N
R13,
QI
R15
R18
Resistor: fixed, composition, 23-470
470 ohms,
Resistor: fixed, composition, 24-5.6M B
5.6 megohms,
Resistor: fixed, composition, 24-100K B
100,000 ohms,
Resistor: fixed, cornposition, 25-100K B
100,000 ohms,
Resistor: variable, wir ewound, 210-10
25,000 ohms, linear taper Type 58
Resistor: fixed, composition, 24-15K B
15,000 ohms,
Resistor: fixed, composition,
33 ohms,
Resistor: fixed, composition,
27,000
klO70,
51070,
ohms,
1/2W EB 4711
910%,
51070,
+lo%,
+lO70,
1W GB 3301
+lo%,
1W GB 5651
1W
2W HB 1041
1W
24-33 B
24-27K B
1W GB 2731
B
GB 1041
I
GB 1531
I
Rlb
*See
'Uat
Resistor: fixed, composition, 25-330K B
330,000 ohms,
I
of
M8nufacturtrr
Code
+lO70,
Lettors
2W HB 3341
For
-4
-
Replaceable
Parts
Table.
It
Page 12
TABLE
OF
REPLACEABLE
PARTS
Circuit
Ref.
~.
-~~
~-
R17, R22
R19
0
R2
R2
1
R23, R24
5
R2
R2
6
CR1
Description
Resistor: fixed, wirewound,
30,000 ohms,
Resistor: fixed, composition,
1000 ohms,
Re
si
s
tor: fixed, composition,
150Q ohms,
Resistor: fixed, composition,
18 ohms,
Re
si
s
tor: factory adjustment
Resistor: fixed, composition,
4700
Resistor: fixed, composition,
Rectifier
ohms,
12,000 ohms, +100/0,
:
-+lOo/oo,
+lo%,
+lo%,
+lo%,
1
+10%, 1 W
1
1
W
10
W
W
1
W
W
-hp
Stock
26-12
24-1000
24-1500
24-18
24-4700
24-
12K
2 12 -60
-
No.
Mfr.
S
B
GB 1021
B
GB 1521
B
GB 1801
B
GB
B
GB 1231
M,
*
&
Mfrs.
Designation
Type 1-3/4E
4721
#402D-3452A
F1
F1
F2
tl,
L1
51
52
ri
r2
?1
I2
Fuse: 1.6A, withstands 200% overload
for
25 see. (115 volt operation)
Fuse:
Fuse:
Lamp
Knob:
Reactor:
Switch: toggle
Switch: toggle
Transformer:
Transformer:
Binding Post:
Binding Post
Power Cable:
Fus eholder
a
8A, withstands
for 25 see. (230 volt operation)
20Q$
overload
.25A
:
'1 - l/ZV1
6
H
:
diam.
@
125 MA; 240 ohms
Cap
Insulator:
211-15
--
211-6
211-47
37-11
911-47
310-11
310-21
9
10-66
910-70
312-3
M -58
812-56
-8
3 12
E,
MDL
E,
MDL .8
T,
#312,250
0,
#47
HP
HP
D, 20994-HW
D, 20902
HP
HP
HP
HP
HP
T,
342001
1.6
*See
"List
of
Manufacturers Code
Letters
For
Replaceable
Parts
Table.
*I
Page 13
TABLE
OF
REPLACEABLE PARTS
Circuit
Ref.
v1
v2
v3
vJ4
v5
Tube:
Tube:
Tube:
Tube:
Tube:
5U4G
6L6G
6L6G
6SJ7
VR75
De
s
cription
-hp
-
Stock
No.
212-5U4C
2 12-6L6c
212-6L6G
212
-
6s
J7
212 -VR75
Mfr.
Des
zz
zz
zz
zz
zz
*
dr
Mfrs.
ignrtion
*See "List of Manufacturers Code Letters
For
-6-
Replaceable Parts Table.
Page 14
LIST OF MANUFACTURERS CODE LETTERS
FOR REPLACEABLE PARTS TABLE
Code Letter Manufacturer
A Aerovox Corp.
B Allen-B radley Co.
C Amperite
D
E
F
G
H
I
J
K
L
M
N
0
P
HP
Q
R
S
T
U
V
W
X
Y
Z
AA
BB
cc
DD
EE
FF
GG
HH
I1
JJ
zz
Arrow, Hart and Hegeman
Bussman Manufacturing Co.
Carborundum Co.
C en t
r
Cinch Manufacturing Co.
Clarostat Manufacturing Co.
Cornel1 Dubilier Electric
Electrical Reactance Co.
Erie
Federal Telephone and Radio Corp.
General Electric Co.
General Electric Supply Corp.
Girard-Hopkins
H ewl
Industrial Products Co.
International Resistance Co.
Lectrohm, Inc.
Littelfuse, Inc.
Maguire Industries, Inc.
Micamold Radio Corp.
OakMfg. Co.
P.
Radio Corp. of America
Sangamo Electric Co.
Sarkes Tarzian
Signal Indicator Co.
Sprague Electric Co.
Stackpole Carbon Co.
Sylvania Electric Products, Inc.
Western Electric Co.
Wilkor Products, Inc.
Amphenol
Dial Light Co. of America
Leecraft Manufacturing Co.
Any tube having RMA standard characteristics
e
R. Mallory Co., Inc.
Co.
a1 ab
Resistor Corp.
tt
-P
ackard
Co.
Page 15
CLAIM FOR DAMAGE
IN
SHIPMENT
The instrument should
to operate properly, or
A
carrier.
and this report should be forwarded to us.
position to be made of the equipment and arrange for repair or replacement.
Include model number, type number and
instrument for any reason.
full report of the damage should
is
be
tested
damaged in any way, a claim
as
soon
We
serial
as
be
obtained by the claim agent,
will then advise you of the dis-
number when referring to this
it
is
received.
should
If
be
filed with the
it
fails
WARRANTY
Hewlett-Packard Company warrants each instrument manu-
factured by them to
ship. Our liability under this warranty
adjusting any instrument returned to the factory for that purpose
and to replace any defective parts thereof (except tubes,
batteries). This warranty
to the original purchaser when the instrument
portation charges prepaid by the original purchaser, and which up-
on
our examination
If the fault has been caused by misuse or abnormal conditions of
operation, repairs
will be submitted before the work
If any fault develops, the following steps should beqtaken:
be
free from defects in material and workman-
is
limited to servicing or
fuses and
is
effective
is
disclosed to our satisfaction to be defective.
will
be billed at cost. In this case, an estimate
is
for one year after delivery
is
returned, trans-
started.
Notify us, giving full details
1.
the model number,
this information, we will give you service instruction or shipping
data.
2.
On receipt of shipping instruction, forward the instru-
ment prepaid,
ed, an estimate of the charges will be
provided the instrument
type number and serial number. On receipt of
and repairs will
is
be
not covered by the warranty.
made
of
the difficulty, and include
at
the factory.
made
before the work begins
If
request-
SHIPPING
All
shipments of Hewlett - Packard instruments should
made
wooden box and surrounded by two to three inches of excelsior or
similar
via
Railway Express. The instruments should be packed in
shock-absorbing material.
DO NOT HESITATE
H
EW L ETT-
PAC
TO
KA
R
CALL
D
C
OM
ON
PANY
US
be
a
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