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."