Hi John,
this is the article in July/August 1999 QEX, "A regulated 2400-V power
supply" pages 50-55. by A.R.(Al) Williams, VE6AXW. I do not have it in
electronic form but as magazine issue. If you let me know fax number i will
fax it to you later today!
Best regards,
Nermin S58DX
( yeah, i know now why my wife told me why i am keeping all those
magazines!)
----- Original Message -----
From: "W0UN -- John Brosnahan" <shr@swtexas.net>
To: <amps@contesting.com>
Sent: Friday, July 06, 2007 9:14 AM
Subject: [Amps] Need help locating an article
>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.
> My interest is NOT in HV regulating but I think the circuit might be a
> useful
> starting point for another application.
>
> Thanks in advance for any help.
>
> --John W0UN
>
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>
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