Is any hum at all tolerable?

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Is any hum at all tolerable?

lasurveyor
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Posts: 90
Threads: 32
Joined: Oct 2011
City: Nipomo State, Province, Country: CA

#10

02-21-2021, 02:30 PM

Thanks all for the thoughts and tips. With Covid these days new old projects are harder to come by with flea markets closed and all, so I'm going back to past irritants.
I swapped out the 35Z5 with one from a quiet Philco Wedge, and noticed a subtle difference in that quiet hum, and it does have a PM speaker which isn't helping. I'll give a few things a try, like increasing the electrolytics, decreasing the grid resistor and sheilding the grid to volume wire. This'll keep me busy for a while, I'll let you know how it goes.
Thanks!!

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Messages In This Thread

Is any hum at all tolerable? - by lasurveyor - 02-20-2021, 08:38 PM

RE: Is any hum at all tolerable? - by David - 02-20-2021, 08:50 PM

RE: Is any hum at all tolerable? - by radio1 - 02-20-2021, 09:12 PM

RE: Is any hum at all tolerable? - by lasurveyor - 02-20-2021, 09:16 PM

RE: Is any hum at all tolerable? - by gregb - 02-20-2021, 09:25 PM

RE: Is any hum at all tolerable? - by lasurveyor - 02-20-2021, 10:02 PM

RE: Is any hum at all tolerable? - by Radioroslyn - 02-20-2021, 10:25 PM

RE: Is any hum at all tolerable? - by radiorich - 02-20-2021, 11:03 PM

RE: Is any hum at all tolerable? - by RodB - 02-21-2021, 09:23 AM

RE: Is any hum at all tolerable? - by lasurveyor - 02-21-2021, 02:30 PM

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