Assembly
and
Operation
of the
COAXIAL S W I T C H
MODEL HD-1234
TABLE OF CONTENl'S
Introduction . . . . . . . |
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Parts List . . . . . . . . . |
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Step-by-step Assembly . . |
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Installation and Applications |
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In Case of Difficulty . . . . |
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Specifications . . . . . . |
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Warranty . . . . . . . . |
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Inside front cover |
Customer Service . . . . |
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. Inside rear cover |
INTRODUCTION
The Model HD-1234 Coaxial Switch i s designed to switch one RF source or receiver to any one of several antennas or RF loads, while grounding the unused connectors.
The Coaxial Switch can be used in conjunction with the Heathkit RF Load Wattmeter for off-theair tuneup, and can then be immediately switched to an antenna for normal transmission and reception.
A mounting bracket is provided to permit you to conveniently hang the switch on the side of an equipment enclosure, onto a desk, or on a wall. The switch may be used handily without the mounting bracket in any application which suits the needs of your transmission system.
HEATH COMPANY
BENTON H A R B O R . M I C H I G A N 49022
Page 2
KEY PART PARTS
--No. No. -Per Kit
METAL PARTS
HARDWARE
P A R T S LIST
Unpack all the parts in the k i t and check each part against the following list. The key numbers correspond to numbers on the Parts Pictorial.
DESCRIPTION |
PRICE |
|
- |
|
Each |
Connector panel |
.25 |
Ground panel |
.45 |
Mounting bracket |
.90 |
Cover plate |
.70 |
4-40 x 114" self- |
.05 |
tapping screw |
|
4-40 x 114" flat |
.05 |
head screw |
|
6-32 x 112" screw |
.05 |
#6 x 518" sheet metal |
.05 |
screw |
|
6-32 nut |
.05 |
Thumbnut |
.05 |
Control nut |
.05 |
#6 flat washer |
.05 |
Control flat washer |
.05 |
Control lockwasher |
.05 |
#6 lockwasher |
.05 |
#6 solder lug |
.05 |
8-32 x 318" setscrew |
.05 |
KEY PART |
PARTS |
DESCRIPTION |
PRICE |
|
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|
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|
No. |
No. |
Per K i t |
|
Each |
MISCELLANEOUS |
|
|
||
C1 |
63-683 |
1 |
Rotary switch |
4 30 |
C2 |
436-5 |
5 |
Coaxial jack |
.85 |
C3 |
462-24 |
1 |
Knob |
.30 |
|
390-1023 |
1 |
Label set |
.40 |
(24 |
391-34 |
1 |
Blue and white label |
.15 |
|
597-260 |
1 |
Parts Order Form |
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|
597-308 |
1 |
Kit Builders Guide |
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|
1 |
Manual (See front cover |
2.00 |
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for part number.) |
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Solder (Add~t~onal3'rolls of solder, #331-6, can be ordered for 25 cents each.)
The above prices apply only on purchases from the Heath Company where shipment is to a U.S.A. destination. Add 10% (minimum 25 cents) to the prlce when ordering from a Heathkit Electronic Center to cover local sales tax, postage, and handling. Outside the U.S.A., parts and service are available from your local Heathkit source and will reflect additional transportation, taxes, duties, and rates of exchange.
Page 3
P A R T S P I C T O R I A L
Page 4
STEP-BY-STEP ASSEMBLY
Before you start to assemble this kit, read the "Kit Builders Guide" for complete information on soldering and step-by-stepassembly procedures.
Position all parts as shown in the Pictorials. Follow the instructions carefully, and read the entire step before you perform the operation.
Solder a part or a group of parts only when instructed t o do so.
Refer to Pictorial 1 for the following steps.
4 - 4 0 x 114"
S E L F T A P P I N G
( |
) |
Install a 6-32 x 112" screw and a #6 solder lug through the ground panel |
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as shown. Secure the screw with a #6 lockwasher and a 6-32 nut. Position |
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the solder lug straight up toward the edge of the panel with the panel |
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flange to the left. |
( |
) |
Place two #6 flat washers and a thumbnut on screw. Turn the thurnbnut |
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finger tight. |
NOTE : When you use self-tapping screws in this kit, as in the following step, do not overtighten the screws. This can strip the threads in the metal parts.
( ) Mount a coaxial jack on a connector panel with four 4-40 x 114" self-tapping screws. Position the open portion of the connector solder post toward either side of the panel.
# 6 F L A T W A S H E R S
S C R E W
PICTORIAL 1
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