07-25-2021, 06:43 AM
Chris:
Being the type inclined to do the least work possible, which prompted my post in the first place, I decided to take your advice to replace tubes. The 6K7 and 6A8 seemed to be the likely candidates. I had done this one before with no change but your advice made me question the tubes I'd chosen as I had just pulled them out of a bin of untested, used tubes. I do not have a tube tester and simply use a meter to make sure I have continuity on the heater pins. This time around I took them from a known good radio starting with the 6K7. Bingo, I played the radio for more than an hour with no fade. This has saved me a ton of unnecessary work had I dived into the sub-chassis.
Thanks Chris, your reply ignited the spark I needed to question my choice of replacements!
Being the type inclined to do the least work possible, which prompted my post in the first place, I decided to take your advice to replace tubes. The 6K7 and 6A8 seemed to be the likely candidates. I had done this one before with no change but your advice made me question the tubes I'd chosen as I had just pulled them out of a bin of untested, used tubes. I do not have a tube tester and simply use a meter to make sure I have continuity on the heater pins. This time around I took them from a known good radio starting with the 6K7. Bingo, I played the radio for more than an hour with no fade. This has saved me a ton of unnecessary work had I dived into the sub-chassis.
Thanks Chris, your reply ignited the spark I needed to question my choice of replacements!
Glenn
