P-C70-OSC - Antique Electronic Supply

*You should not need to attach any
radiating antenna to this transmitter.
*ANTENNA
C1
P-C70-OSC
134
VDC
3
0 VDC
C3
2
1
8
220p
4
RED
DOT
C2
82p
L1
4
1
0 VDC
1
As viewed from above with solder lugs on the bottom
(close to the surface of the board).
5
134
VDC
47p
4
3
1
5
1.5 mVAC
1129 kHz
3
V1
6
7 VDC
22K
L1 = P-C70-OSC
V1 = 12SA7GT (or 12SA7) - Pentagrid Converter
.047µ
R1
1K
C5
R3
3
2
2
5
AF IN
100K
3
Penta-grid Descriptions
1
0 VDC
R2
GND
4
T1
149
VDC
105
VDC
134
VDC
1N4007
2.2K
4.7K
D1
R5
R4
RED
C8
47µ
C7
+
+
47µ
C4
.01µ
(Pin 8) g3 = audio signal input
(Pin 4) g2 = oscillator anode
(Pin 5) g1 = oscillator input
5
119 VAC
-2 VDC
(Pin 1) g5 = suppressor grid
(Pin 4) g4 = screen
8
V1
6
C6
.01µ
BLK
RED
BLK
C9
2
GRN
.002µ
12
VAC
GRN
7
V1
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Copyright © 2012 by Antique Electronic Supply
Wireless Transmitter Kit
(K-488) Schematic

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