[Amps] Transformer-LESS advice

[K1SG at aol.com]

Rob,
I remember seeing these power supplies advertised in QST a few years ago.  
Unfortunately the manufacturer, Watts Unlimited, is no longer in business. 
If anyone has one of these supplies they're not using, I'd really love to  
find one; failing that, I'd love to get a copy of the documentation, and see 
if  I could make one up.
The idea is a neat one, and I like amplifiers that have some HV on  them!
 
Steve
 
Steve  Gilbert
K1SG
K1SG at AOL.com
508-435-9133  

 
In a message dated 1/14/2011 3:00:41 P.M. Eastern Standard Time,  
amps-request at contesting.com writes:

From:  Rob Atkinson
Sent: Thursday, January 13, 2011 11:50 AM
To:  amps at contesting.com
Subject: Re: [Amps] Transformer advice

There's  also Electronic Products Design in N.C.  http://www.epd-inc.com/

I  have one of their transformers, a 1 A 120 - 0 - 120 to 2450 v. no CT
45 lb  job that I bought used a month ago.  I have not tried it yet but
it  looks like a very well made transformer.  It is a shell type  open
frame unpotted.   Only 1 year old.   I got it for  a friend but it
looks so nice I have to get it to him soon or I'll start  wanting to
keep it.

But, if you are interested in portability, and  don't mind getting a
bit out there, there was a company that advertized in  QST for a time,
and may still, with a product that was a h.v. switching  supply.  I
think it was 2.5 KV but don't recall the current.  But  the whole p.s.
was only around 20 or 30 lbs.  I was not interested in  it because I
need more v. and am not interested in portable QRO so I'm  afraid I
don't recall much else about it.   They ran a 1 or 2  column inch
display ad for several years.  Take a look through a few  issues from
the past year or two and the ad will probably be in them.   Otherwise
hamfests, eBay, qth.com probably are your best bets for used  plate
iron.  Don't underestimate local word of mouth.  Let it be  known you
are looking for a h.v. transformer and someone might free one  up.

73

Rob
K5UJ