Westinghouse Type KR Installation & Operating Instructions Manual page 11

Carrier relaying transmitter -receiver
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TYPE K R CAR RI E R SET --
TYPICAL TR ANSISTOR DC M E ASU R EMENTS WI TH R E F E R ENC E TO NEG. DC 0
Transistor
Q- 1
Q- 2
Q- 3
Q-4
Q-5
Q-6
1 29 VDC
51 VDC
Q- 7
1 29 VDC
51 VDC
Q-8
Q- 9
Q-l O t t
Q- 1 2 t t
Q- 15 t t
t E-Emitter; B-Base; C-Collector.
tt With respect to term F on printed board.
TABLE
Condition A
Tx-Biocked
Rx-No Signal
( V olts)
t
t
C
t
B
E
20.0
20 . 0
0. 38
7.2
1.8
7
6.2
8 . 0
2
20 . 0
2. 6
20.0
20 . 0
2.6
20 .0
1 10
1 29
1 10
3 2
3 2
5 1
68
1 29
70
1 . 0
0
5 1
6 . 2
8
2
7
7.2
1.8
2
Condition B
Tx-Biocked
Rx-With Signal
( V olts)
C t
t
t
E
B
0 . 4
20 . 0
20 . 0
1.8
7
7. 2
6 . 2
8
2.0
20.0
2.8
20 . 0
20.0
20 . 0
2. 8
1 14
1 29
1 15
3 2
3 2
5 1
86
78
80
1.4
2.2
7 . 0
2
6. 2
8
7
7.2
1.8
1 8
Condition C
T x-Unblocked
Rx-No Signal
( V olts)
t
t
t
C
E
B
2
6.2
8
1.8
7
7.2
1 8
0 . 4
0.27
0. 20
50
0. 27
0.20
50
1 1

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