[Amps] AL-1200 Current Limit Relay Noise

[Ken, KA0W]

Thank you Fern!

Sounds logical, will check it out tonite after work.

73,

Ken, KA0W




--- Fern Rivard <crc at cyberlink.bc.ca> wrote:

> That almost sounds like a dc relay trying to operate
> with ac source or 
> with too much ripple on dc supply or maybe the
> voltage on that source 
> has deteriorated and is way too low.   Fern
> 
> 
> ----- Original Message ----- 
> From: "Ken, KA0W" <cw at ka0w.com>
> To: <amps at contesting.com>
> Sent: Friday, November 03, 2006 8:07 AM
> Subject: [Amps] AL-1200 Current Limit Relay Noise
> 
> 
> > Hello!
> >
> > Anyone know what causes the filter cap current
> > limiting relay / 20 ohm resistor combo (RLY3) to
> sound
> > off in an Ameritron AL-1200? Continuous buzz /
> rattle
> > type sound. Can be silenced by putting pressure on
> > relay, but noise returns. Noise is louder than the
> > blower. Common problem? Perhaps characteristic of
> a
> > low cost relay.
> >
> > Thank you,
> >
> > Ken, KA0W
> >
> >
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>