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Old April 2nd 07, 01:50 AM posted to rec.radio.amateur.boatanchors
Pete KE9OA Pete KE9OA is offline
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First recorded activity by RadioBanter: Jul 2006
Posts: 271
Default Bendix T12B, T12C

I am not sure where the AGC line is in this radio...............I ordered
the service manual for this radio from ESSO last Friday.
The S-Meter is functioning, but still, I realize that this doesn't tell the
whole story. I am expecting to see a shorted AGC timing capacitor.
Once I get the schematic, it will be a little bit easier to muddle through
the circuit. For the time being, I am stuck.

Pete

"Scott Dorsey" wrote in message
...
Pete KE9OA wrote:
If anybody has seen this problem............I picked up a couple of these
radios from the local airport. Two of them work ok, but the other two are
running open loop with their gain. In other words, no AGC. Any ideas on
what
could be causing this?


Either the front end is not getting proper AGC voltage, or the detector
stage isn't producing it. What do you measure on the AGC line, and does
it change when you tune stations in and out?
--scott

--
"C'est un Nagra. C'est suisse, et tres, tres precis."