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model 91 volume control issues
qrper
Junior Member
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Posts: 6
Threads: 2
Joined: Jan 2016
City: north lawrence ohio
#9

01-18-2016, 12:03 AM
Gang,

It hurts to admit, but I had a screwup. one of those capacitor blocks I re-stuffed appeared to have been re-stuffed incorrectly. Basically, I had a .01 cap going to the wrong lug.

I disconnected the volume control and i STILL had plenty of audio.

turned out I had a .01 cap routing audio directly into the audio pre-amp.

The 80 tube was replaced and when powering up, the radio did not play. I monitor ac current and my meter pegged as the radio warmed up.

That problem tuned out to be a bad 42 audio amp.

new tube, new rectifier and the correct capacitors, the radio is playing like it should. (shadow box still not working, but I can live with that.)

thanks for all the input guys,

I'm Mike, WB8VGE
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Messages In This Thread
model 91 volume control issues - by qrper - 01-16-2016, 08:32 PM
RE: model 91 volume control issues - by qrper - 01-16-2016, 09:40 PM
RE: model 91 volume control issues - by qrper - 01-17-2016, 01:03 AM
RE: model 91 volume control issues - by codefox1 - 01-17-2016, 02:05 PM
RE: model 91 volume control issues - by qrper - 01-18-2016, 12:03 AM



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