04-28-2026, 01:08 PM
If you think the issue is with the 77 tube, you could swap the two around to see if the problem clears.
You could remove the 37 detector to see if the problem is truly in the audio section, or deeper in the radio. The 42 driver could also be removed as a process of isolation.
Tubes can do funny things at their age! I know I do at my age
I know tube shields are also critical, but in theory, a set warming up and getting better would not generally be a shield. Still worth checking.
You could remove the 37 detector to see if the problem is truly in the audio section, or deeper in the radio. The 42 driver could also be removed as a process of isolation.
Tubes can do funny things at their age! I know I do at my age
I know tube shields are also critical, but in theory, a set warming up and getting better would not generally be a shield. Still worth checking.
Tony
“People may not remember how fast you did a job, but they will remember how well you did it”
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