40-180 slight hum

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40-180 slight hum

Edisla
Member

Posts: 155
Threads: 25
Joined: Sep 2014
City: Folsom, CA

10-09-2014, 09:32 PM

I just finished my 40-180 restoration and now that it is all together I am hearing a slight hum.

I can disconnect the speaker and get a little hum I guess just from the transformer itself resonating through the cabinet but once I connect speaker it gets a tad louder.

I don't recall hearing this when it was on the bench.

Do these units usually exhibit a slight hum or do I have something else going on?

Most might not hear it but I can of course Icon_wink

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Messages In This Thread

40-180 slight hum - by Edisla - 10-09-2014, 09:32 PM

RE: 40-180 slight hum - by KCMike - 10-09-2014, 09:57 PM

RE: 40-180 slight hum - by Edisla - 10-10-2014, 07:59 PM

RE: 40-180 slight hum - by DeckApe - 10-13-2014, 02:57 PM

RE: 40-180 slight hum - by morzh - 10-13-2014, 03:37 PM

RE: 40-180 slight hum - by mikethedruid - 10-13-2014, 04:02 PM

RE: 40-180 slight hum - by morzh - 10-13-2014, 05:16 PM

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