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1. [Amps] AL-80B (score: 1)
Author: Mansfield Aubrey <n3bm@finnsfield.net>
Date: Sun, 30 Sep 2012 18:38:54 -0400
My 5 week old AL-80B has developed a loud transformer hum when keyed. It's very noticeable (and annoying), even with headphones on. Is this normal? - Aubrey N3BM _____________________________________
/archives//html/Amps/2012-09/msg00320.html (6,732 bytes)

2. Re: [Amps] AL-80B has developed a loud transformer hum (score: 1)
Author: Mansfield Aubrey <n3bm@finnsfield.net>
Date: Mon, 1 Oct 2012 09:21:00 -0400
Although no bolts or screws were obviously loose apparently there were enough that were marginally tightened to cause the transformer hum. I tightened everything around the transformer (including ove
/archives//html/Amps/2012-10/msg00003.html (7,730 bytes)

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