[TenTec] Fw: Your semi-annual Astron tip...

[Gary Hoffman]

I remember seeing this before a couple of times, but thank you for reminding
us all of it.  I feel this reminder was most timely.

I dare say other models of power supply might benefit from the same
modification.

Does anyone know of a case where a particular brand of power supply should
NOT have the negative strapped to ground ?  If so, that would be something
to remember also.  I'm not aware of any personally.

73 de Gary, AA2IZ



----- Original Message ----- 
From: "Mike Hyder -N4NT-" <n4nt_m_o_hyder at charter.net>
To: "Ten-Tec Reflector" <tentec at contesting.com>
Sent: Tuesday, November 29, 2005 9:07 AM
Subject: [TenTec] Fw: Your semi-annual Astron tip...


> Your semi-annual Astron tip...
>
> People come and go from this reflector. This is a reminder that many
> troubles with Astron power supplies can be cured by grounding the negative
> post to the cabinet.  I did it by removing the insulators from the
negative
> post, scraping some paint from around the hole and putting a lockwasher on
> the post when reinstalling.  Below is my correspondence with them about
it.
>
> Happy November,
> Mike -N4NT-
>
> ----- Original Message -----
> From: "ASTRON" <sales at astroncorp.com>
> To: "Mike Hyder" <N4NT at chartertn.net>
> Sent: Tuesday, November 20, 2001 6:06 PM
> Subject: Re: RS-35 in an RF environment
>
> MIKE.
>
> 1ST CHECK YOUR AC OUTLET GROUND IT MUST HAVE GOOD CONNECTION
>
> 2ND. MEASURE FROM THE -13.8V TERMINAL TO CHASSIS, IF NO DIRECT CONNECTION,
> RUN A PIECE OF WIRE FROM -13.8V TERMINAL TO CHASSIS.
>
> JANE
>
> ----- Original Message -----
> From: Mike Hyder <N4NT at chartertn.net
> To: <eastron at astroncorp.com
> Sent: Tuesday, November 13, 2001 7:56 AM
> Subject: RS-35 in an RF environment
>
> Several people have advised me that Astron had a service bulletin for the
> Astron RS-35 (and possibly other models) which advised to strap the
negative
> post of the supply to the cabinet to reduce or eliminate problems caused
> when RF energy affects the supply's regulation.  This is in particular a
> frequent problem in the amateur radio service.
>
> Could you confirm such bulletin and either email it to me or point me to
the
> URL that will allow me to view it, please?
>
> Many thanks,
> Mike Hyder
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>