RE: I think I hold the record for stupid hum problems - Paul Barker - Tube DIY Asylum

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RE: I think I hold the record for stupid hum problems

Paul Barker

In Reply to: I think I hold the record for stupid hum problems posted by airtime on January 2, 2022 at 07:24:19:

I remember the cellphone prrrpppp blu blu blu blerppp.
An early V1505 breadboard that near enough filled my dining room and a hum I couldnt trace. Music sounds so much better when everything quiet, no industry, early hours of morning, maybe only the occasionally fridge freezer motor, but otherwise the best time to listen to music. I turned the lights off, listened to radio 3 FM not digital. In seventh heaven except for this hum.
Had a neptune potted choke, as the lights were off, I saw even through the pot (probably must have arced and burned a pinhole to see arc, not visible with lights on or daylight.) Might have saved my life turning the lights off. Power supply was a Boat Anchore 3kvct about a foot by a foot by a foot in domentions and almost my body weight with two big eyelets for crane lifting. The transformer wasnt the issue but the potential for it to provide fuel to the fire was life threatening.
My advise: just be satisfied with 45's 10y's 2a3's, and just because a choke or transformer is potted does not mean its not the cause of a house fire or at least hum!

Edits: 01/03/22

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Follow Ups Full Thread

Topic - A new but improved hum - airtime 14:36:04 01/01/22 (12)

Test results for Trobbins and Triode K - airtime 15:46:01 01/04/22 (2)

Now this is weird - airtime 16:38:43 01/04/22 (1)

RE: Now this is weird - Paul Joppa 20:05:41 01/04/22 (0)

RE: A new but improved hum - Triode_Kingdom 13:01:30 01/02/22 (4)

yep - airtime 18:14:52 01/02/22 (3)

RE: yep - Triode_Kingdom 20:36:47 01/02/22 (1)

Tuesday I will get back to it - airtime 06:41:45 01/03/22 (0)

RE: yep - RV817 19:35:06 01/02/22 (0)

RE: A new but improved hum - Jonesy 16:24:15 01/01/22 (2)

I think I hold the record for stupid hum problems - airtime 07:24:19 01/02/22 (1)

RE: I think I hold the record for stupid hum problems - Paul Barker 22:11:30 01/03/22 (0)

It's a tube amp right ? .......................... - Cut-Throat 15:59:50 01/01/22 (0)

Follow Ups

RE: I think I hold the record for stupid hum problems - Paul Barker 22:11:30 01/03/22 (0)

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