[TenTec] Astron RS-35M and Omni VI

[Mike Hyder -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

----- Original Message ----- 
From: "Stuart Rohre" <rohre at arlut.utexas.edu>
To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
Sent: Monday, August 01, 2005 4:54 PM
Subject: Re: [TenTec] Astron RS-35M and Omni VI


The resistor is there to prevent voltage surge at turn on, if it is across
the positive and negative terminals.
It provides a constant bleeder current for the output capacitors.

For controlling your grounding, that should be done AT the RADIO, that is
the place to ground the negative of the supply, not at the supply.

However, make sure there is a suitable disc ceramic RF bypass cap across the
supply plus and minus as in later 35 Amp Astron design.

Stuart
K5KVH



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