H-33F/PT Handset

©Brooke Clarke, N6GCE

German H-33 Handset
H-33F Handset
H-33F Handset

Description

This handset has a carbon mike element and a dynamic earphone.  The push to talk switch makes one of the mike connections when pressed and it has a seperate isolated pair of terminals that are shorted when pressed.  The earphone is aloway connected.

Where Used

Radios

GRC-106
GRC-3-8
PRC-6 or PRC-6/6
PRC-8-9-10 and the, Canadian versions like CPRC-510, PRC-28
PRC-16
PRC-47
SEM-25
SEM-35 Ra
GRA-6 Control Group
Wireless Set A40

Telephone Related

TA-312
SB-22 switchboard
GRA-6 Control Group

Wiring

U-161/UConnector
Wire color
Function
  
A
White
Speaker
 75 Ohm DC
B
Black
Speaker

C
Red
Mike
0.6 V @ 1 ma
D
Black
Mike
 
E
Green
PTT then Mike
 
F
Brown
isolated PTT
 
H
Yellow
isolated PTT
 
J
nc
na
 
K
nc
na
 
L
nc
na
 


H-33 Schematic


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