[Boatanchors] Multi Products A54H transmitter - tubes? PS pin out?
W4AWM at aol.com
W4AWM at aol.com
Fri Mar 18 12:42:18 EST 2005
Hi Greg,
I think I have the info you need.
The modulator tubes are a pair of 6L6GAs
Octal Connector Pinout:
1. Ground
2. 6.3V (speech amp and modulator tubes only)
3. Control (antenna relay and dynamotor)
4. B+
5. N/C
6. Control (antenna relay and dynamotor)
7. 6.3V
8. 6.3V
NOTES:
Pins 2 and 3 jumpered for phone operation or broken with a switch for mobile
operation to reduce battery drain.
Pin 6 Ground for PTT
Pins 7 and 8 jumpered
73,
John, W4AWM
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