[Amps] AL-80B

[Roger (K8RI)]

On 9/30/2012 6:38 PM, Mansfield Aubrey wrote:
> 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?

I wouldn't call it normal, but vibration is not uncommon in E/I 
transformers although it can come from things other than laminations.

As Carl said, as it's still well within warranty I'd call the factory 
first. They are known for pretty good service.

73 and good luck,

Roger (K8RI)


>
> - Aubrey N3BM
>
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