Hi Ted,
Have you vacuumed out the amplifier recently?
On Mon, Nov 23, 2015 at 7:41 PM, Manfred Mornhinweg <manfred@ludens.cl>
wrote:
> Ted,
>
> > My Alpha 76 periodically "snaps" loudly (arcs?) when idling...maybe
> > every 20-30 minutes. Any ideas what this may be?
>
> I don't know anything specific about that Alpha, but I have seen this kind
> of arcing at regular intervals when there is a simple power supply that has
> no bleeder and no load on it. There are very often lots of very narrow but
> tall spikes riding on the power line. When there is no load at all on a
> power supply, these will slowly charge the filter capacitor to such an
> overvoltage that something arcs.
>
> So I would suggest to check all bleeder resistors, first of all.
>
> Manfred
>
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--
Later,
John Bodine/WU2E
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