[Amps] Remote power supply question

Ian White GM3SEK gm3sek at ifwtech.co.uk
Wed Feb 18 14:48:30 PST 2009


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


More information about the Amps mailing list