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Philco 71B Code 125 speaker thumping
dmblackburn
Junior Member
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Posts: 44
Threads: 8
Joined: Feb 2021
City: Durham State, Province, Country: NC
#17

02-13-2026, 01:08 PM
I removed all the vacuum tubes and tested. All were good. The 80 tube was ?. 
I got the thump gone when placing my  finger on the grid cap of the 44 (IF). I had to slightly move it around a bit.
Only thing remaining is a mild hum.
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RE: Philco 71B Code 125 speaker thumping - by dmblackburn - 02-13-2026, 01:08 PM



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