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Philco 71B Code 125 speaker thumping
morzh
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#26

02-19-2026, 10:14 AM
I thought it was 6X5 that was notorious for the shorts (K to F).
5Y3 should not be any worse than 80, right? It is a direct heated tube. In essence, the two are not that different, the former having that extra plate resistance.

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RE: Philco 71B Code 125 speaker thumping - by morzh - 02-19-2026, 10:14 AM



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