[Amps] ACOM1010 Xformer growling

[Kim Elmore]

Are you on 50 Hz or 60 Hz power? If you have a transformer designed for 60 Hz running on 50 Hz, it may well buzz quite loudly, run hot, and have poor regulation. 

Kim N5OP 

"People that make music together cannot be enemies, at least as long as the music lasts." -- Paul Hindemith

> On May 10, 2019, at 8:26 PM, Tack JE1CKA <je1cka at gmail.com> wrote:
> 
> I had a very clean used ACOM1010(a 4CX800, 160-10m) amplifier yesterday with $500US. It runs fine but a following issue.
> A transformer is growling very badly.
> When the amp was keyed a transformer started to growl, and it was driven 50-60w input a roar became terrible.
> I checked the fix bolt of the transformer and found nothing wrong.
> How to fix this transformer growling.
> -- 
> Tack Kumagai, JE1CKA
> 
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