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Philco 71B Code 125 speaker thumping
dmblackburn
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Posts: 44
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Joined: Feb 2021
City: Durham State, Province, Country: NC
#1

02-10-2026, 03:08 PM
Bought this set on eBay. I replaced the electrolytics and safety capacitors and the set plays but has a rhythmic "heartbeat" sound thumping from the speaker.
I am getting stations but is interrupted by the regular thumping sounds. Sounds to be around 60 per minute. It does not look like anyone has reworked the Bakelites so before I do that I wanted to see if anyone else has seen this before.
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Philco 71B Code 125 speaker thumping - by dmblackburn - 02-10-2026, 03:08 PM



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