I'd start by replacing V5 if you have a spare. If not, just swap with V4. If no effect, replace V1
and/or V4. If still no luck, we'll have to make some measurements in and around Q4.
73, Garey - K4OAH
Glen Allen, VA
Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line
and TR-4/C Service Supplement CDs
<www.k4oah.com>
[email protected] wrote:
With my R4A s/n 6759, have distortion of a sideband signal when RF gain control at maximum, AVC on
"fast". CW signal is normal, and there is no distortion with the AVC off or on "slow" or with RF
gain lower. I'm recalling the AVC setup can be difficult to get right, appreciate any advice
before beginning to work on this "issue".
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