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Re: [Amps] Need help locating an article

Subject: Re: [Amps] Need help locating an article
From: Steve Thompson <>
Date: Fri, 06 Jul 2007 08:33:52 +0100
List-post: <>
W0UN -- John Brosnahan wrote:
> I have looked in the amps reflector as well as in the ARRL index for 
> QST and QEX
> and I have been unable to locate an article that I would like to read 
> again.  This is
> especially frustrating since I made a copy of it and put it SOMEWHERE and can
> not find the copy either.
> It was probably 5 to 10 years ago (but not sure) and the article was 
> on regulating
> a HV supply using AC mains control.  It had an SCR or Triac controller on the
> AC mains not unlike a basic lamp dimmer circuit and sampled the HV output
> with a voltage divider that drove an op amp and that controlled the 
> SCR/Triac.
I think there was such an article in VHF Communications some years ago.

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