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Re: [Amps] Remote power supply question

To: amps@contesting.com
Subject: Re: [Amps] Remote power supply question
From: Ian White GM3SEK <gm3sek@ifwtech.co.uk>
Reply-to: Ian White GM3SEK <gm3sek@ifwtech.co.uk>
Date: Wed, 18 Feb 2009 19:48:30 +0000
List-post: <amps@contesting.com">mailto:amps@contesting.com>
Andy GD0TEP wrote:
>Hi to the group,
>
>I plan on further modification to my GS35b amplifier, namely, to build a
>remote PSU.
>
>My question is this:
>
>What is the safest way to do this?
>
>With just the high volts transformer remote, Is it best to run a supply from
>the RF deck to control it?
>
>Do I need to think of some sort of electrical interlock??
>
>How should I go about connecting the HV supply?
>

Well, you could always try Radcom!  The March issue (arriving any day 
now) winds up a three-part series on exactly this topic.

Unfortunately the articles are only accessible to RSGB members, but 
there are further links at the 'In Practice' URL below, including a link 
to Mark K5AM.

I strongly agree with Rick K2XT about using the same multi-way connector 
for ground, B-minus and the control line that energizes the HV mains 
relay. This ensures that HV cannot appear unless the supply also has its 
B-minus and safety ground returns.

For remote HV supplies I am *strongly* recommending coaxial HV 
connectors which again guarantee a safety ground.


-- 

73 from Ian GM3SEK         'In Practice' columnist for RadCom (RSGB)
www.tinyurl.com/inpractice
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