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Re: [Amps] Alpha 76 question

To: amps@contesting.com
Subject: Re: [Amps] Alpha 76 question
From: John Bodine <john.bodine@gmail.com>
Date: Tue, 24 Nov 2015 12:04:43 -0500
List-post: <amps@contesting.com">mailto:amps@contesting.com>
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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