Heathkit HG 10B Manual

Page 1

TA BL E OF CONTENTS

Assembly Specifications ..... . ............ 2
Introduction. . ............ . ..... 3
and Circuit Description. . . . . . . . . ...... 3
Construction Notes ................ 5
O eration Schematic ................. . . . . . 5*
p Parts List ..... . . . ...... . ...... . 6
Proper Soldering Techniques ......... 8
Of the Step-By-Step Procedure ............ 9
@ Step- By-Step Assembly. ............ 10
Dial Mechanism. ............... 10
AM ATEU R VFO Chassis Parts Mounting .......... 14
Chassis Wiring ................ 16
M O D EL H G _1 08 ChaSSiS-TO-Dial MeChanism
Assembly .................... 18
General Wiring. . ............. . 20
Pilot Lamp Wiring .............. 22
Final Chassis Assembly And
Wiring ...................... 22
Dial Drive Assembly ........... . 24
Final Assembly ...... . ......... 26
Installation ..... . ............. . . 27
VFO Calibration. ................ 29
Operation ...................... 32
In Case Of Difficulty ............... 33
Troubleshooting Chart. ....... . . . . . 33
Factory Repair Service. . . . . . . . . . . . 34
Replacement Parts Price List, _ , , . . . . 36

*Fold- out from page.

The Heath Company reserves the right to discon-
tinue instruments and to change Specifications at
any time without incurring any obligation to in-
corporate new features in instruments previous-
ly sold.

HEATH COMPANY

BENTON HARBOR.
MICHIGAN 490 2 2

Page 2

Page 2

Band Coverage. . . . .

SPECIFICATIONS

0000000000000000

Load Impedance. . . . . . . .

Output Voltage.
Output Connector.

C ontrols .

Tube C omplement.

...............

IIIIIIIIII

Power Requirements. . . . . . . . . . .

Dimensions.

0000000000000

Net Weight...................

-I-IEATHKIT"
Band Dial Output
(Meters) Calibration gmc) Fre uenc mc

80 3.5 to 4 3.5 to 4
4O 7 to 7.4 7 to 7.425
20 14 to 14.8 7 to 7.425
15 21 to 22.2 7 to 7.425
10 28 to 29.7 7 to 7.425

6 50 to 54 8.333 to 9

2 144 to 148 8 to 8.222

50,000 8'2 or more.
5 volts rms, Open. circuit.

Phono-type socket.

FUNCTION switch (STBY-OPR-SPOT).
FREQUENCY (variable capacitor).
BAND switch.

1 - 6CH8, Oscillator-Cathode follower.
1 - 0B2, Voltage regulator.

108 volts DC at 25 milliamperes and 6.3
volts AC or DC at 0.75 ampere. (These voltages
are provided directly from the accessory sock-
et of the Heathkit DX-60A, the DX-BOB, and the
DX-40 Transmitters, or the HW-16 Transceiver;
a minor circuit change in the VFO is required
for the DX-40.

9-3/8 wide x 8-1/2" high x 9-1/8" deep

9-1/2 lbs.