[Amps] AL-1200 Ameritron help request...

[Ken]

Hello Dave!

yes, it is the stud mounted relay for delay startup. Relay vibrates inside. I had same problem with my newer AL1200. Replaced mine and all since. You can run the amp until replacement, but yes noisy.   

Call Ameritron and they will send you one out asap. Small project to replace, just a little time.

73,

Ken, KA0W


--- On Sat, 6/7/08, Dave Weiss <davidhweiss at gmail.com> wrote:

> From: Dave Weiss <davidhweiss at gmail.com>
> Subject: [Amps] AL-1200 Ameritron help request...
> To: amps at contesting.com
> Date: Saturday, June 7, 2008, 2:23 PM
> Hello:
> 
> I have a new AL-1200 and it performs just fine on all
> bands.  It has an
> issue that I did not expect:
> 
> When I first turn it on, it is normally quiet, the blower
> on factory setting
> (medium) is NOT noisy.  The plate voltage is 3500-3600
> depending on house AC
> usage.  After a minute or so, a loud buzzing sound is
> heard.  Ameritron
> guided me to a relay mounted by a 1/4 inch stud and nut on
> the rear of the
> unit.  The nut was loose and tightening it seemed to
> correct the issue for a
> few minutes.  Pressure applied to the rear of the unit
> changes the pitch of
> the buzz.  Everything else on the rear panel is secured
> properly.
> 
> Has anyone experienced this problem?  Need some good help.
> 
> Best 73
> 
> Dave K3FT
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