Hi, Jeff,
Here is the URL:
http://www.qsl.net/dl2kq/pa/1-1.htm
It is in Russian, but there is a button (in the upper-left corner of the
page) for on-line translation.
Oleg
73 de UR3IQO
----- Original Message -----
From: "jeff millar" <wa1hco@adelphia.net>
To: "Oleg Skydan" <skidan@mail.ints.net>
Cc: <amps@contesting.com>
Sent: Sunday, March 14, 2004 3:43 PM
Subject: Re: [Amps] Switch-mode HV power supply
> Oleg...
>
> Can you provide a URL? Google could not find the site you mention.
>
> jeff, wa1hco
>
> Oleg Skydan wrote:
>
> >Hi, All !
> >
> >
> >
> >>The reason for this inquiry is that I'm preparing a talk on power amps
> >>for the GM DX Convention. They have asked me to include some comments
> >>about "tubes v transistors" with a focus on DXing, contesting and
> >>DXpeditions. Comparing cost, size, weight and reliability for the two
> >>different technologies, an interesting question pops up: are our
> >>existing tube amps as small and lightweight as they could be?
> >>
> >>
> >>
> >
> >Check the DL2KQ web site. There is a lot of info about the compact
> >power amplifiers with transformerless power supply. He uses a 220-240V
> >mains with 4x rectifier-multiplier. The isolation is achived by using HF
> >transformer at the PA's input and capacitors (3000 pF) at the output.
> >
> >Many hams use such constructions in the former USSR and they are
> >very satisfied.
> >
> >All the best !
> >Oleg Skydan
> >UR3IQO
> >_______________________________________________
> >Amps mailing list
> >Amps@contesting.com
> >http://lists.contesting.com/mailman/listinfo/amps
> >
> >
> >
>
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|