> -----Original Message-----
> From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com]On
> Behalf Of David Jones
> Sent: Wednesday, June 25, 2003 18:11
> To: Amps Reflector
> Subject: [Amps] Help - Alpha 91b
>
>
> Need help with ailing 91b (for a friend actually).
> Amp tripped offline (protection circuit he thinks) over a year and a half
> ago. In the space of time since he has been trying quite hard to get some
> concrete answers to what might have gone wrong. No apparent
> smoke let out?
> Simply puzzling. Not sure where to start...
>
> Has anyone:
> 1) Actual schematic of the 91b (the Russian made)?
> 2) Actual setup and test procedures for re-alignment after any work?
>
> Friend has credentials to work on the amp! It's simply not an option to
> send it down to Colorado ($$$) to get it looked at and fix. Just a look
> would be hundreds of Canadian dollars (which are in better shape than they
> were against US, but it's still brutal). Fixing the thing would
> be half the
> price of the amp when done (or more).
>
> Help please?
>
> David VE3STT
> djones449@cogeco.ca
David:
Actually, the 91B was made in Bulgaria, not Russia. I have
two, and they are great amps!
The manual includes the schematic and a couple pages of
"Troubleshooting Hints". I would think that a person with
the credentials to work on it should be able to narrow down
the possibilities in an hour or two.
Contact the folks at Alpha - they'll help diagnose the problem,
and provide a manual if needed.
ALPHA / POWER (CrossLink)
6185 Arapahoe Ave., Boulder, Colorado 80303
Tel: 303-473-9232 (Sales ext 151, Service ext 141)
Fax: 303-473-9660
Email (routine technical support questions and parts orders):
alpha-service@crosslinkinc.com
73,
Jeff Maass jmaass@columbus.rr.com Located near Columbus Ohio
USPSA # L-1192 NROI/CRO Amateur Radio K8ND
Maass' IPSC Resources: http://home.columbus.rr.com/jmaass/index.html
Circleville USPSA/IPSC: http://home.columbus.rr.com/jmaass/pcsiipsc.htm
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