Heathkit HD 1234 Manual

Page 1

Assem bly TABLE OF CONTENTS
d Introduction ............................. 1
a n Parts List ............................... 2
Step-by-Step Assembly ......................... 4
O p e rat i o n Installation and Applications ...................... 9
In Case of Difficulty .......................... 13
Specifications ............................. 14
Of th 6 Warranty ........................ Inside front cover
Customer Service ..................... Inside rear cover

-HEAIHKIT'

COAXIAL SWITCH
INTRODUCTION

MO DEL HD-1 234 The Model HD4234 Coaxial Switch is 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-the-air 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 HARBOR, MICHIGAN 49022

Page 2

Page 2

KEY PART
No. No.

METAL PARTS

A1 203-1519 5
A2 203-1520 1
A3 204-1923 1
A4 205-1437 2
HARDWARE

B1 250-1184 38

82 250-428 2
BS 250-234 1
B4 250-1 2

BS 252-77 1
BS 252-23 1
B7 252-7 1
88 253-60 2
39 253-10 1
Bi 0 254-5 1
81 1 254-25 1
Bi 2 259-1 1
B13 250-1193 1

PARTS
Per Kit

PARTS LIST

Unpack all the parts in the kit and check each part against the following list. The
key numbers correspond to numbers on the Parts Pictorial.

DESCRIPTION

Connector panel
Ground panel
Mounting bracket
Cover plate

4-40 x 1/4" self-
tapping screw

4-40 x 1/4" flat
head screw

6-32 x 1/2" screw
#6 x 5/8" sheet metal
screw

6-32 nut

Thumbnut

Control nut

#6 flat washer
Control flat washer
Control lockwasher
#6 lockwasher

#6 solder lug

8-32 x 3/8" setscrew

PRICE

Each

.25
.45
.90
.70

.05

.05

.05
.05

.05
.05
.05
.05
.05
.05
.05
.05
.05

KEY PART PARTS
No. No. Per Kit
MISCELLANEOUS
C1 63-683 1
C2 436-5 5
C3 462-24 1
390-1023 1

04 391-34 1
597-260 1
597-308 1

1

DESCRIPTION PRICE
Each
Rotary switch 4.30
Coaxial jack .85
Knob .30
Label set .40
Blue and white label .15

Parts Order Form

Kit Builders Guide

Manual (See front cover 2.00
for part number.)

Solder (Additional 3' 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 price
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.