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Switching Power Supply?

Subject: Switching Power Supply?
From: Rob Shapiro <ND3A@cais.cais.com> (Rob Shapiro)
Back in mid-December, I ordered a switching power from Tektris.  This supply is 
featured on page 70 of the December 1995 CQ magazine.  What I (and many 
others) are looking for is a reasonably priced switcher for a HF transceiver 
(22 amp 
range) that has a small profile, is lightweight and produces little, if any 
noise.  I 
ordered and tested a supply from Duracomm back in early October and found it 
had 
a severe noise emission problem.  I returned the unit and borrowed an Electro 
Auto 
switcher for my YB0/VK9X trip.  The unit worked fine but goes for approximately 
US$ 
300.

The supply I ordered from Tektris "went" for app. US$170.  I said went because 
when I called them yesterday to inquire about my order, I was told that the 
design for 
the supply was sold to Kenwood.  Kenwood was going to be developing a supply 
for 
the amateur community that will possibly fit all the criteria I stated 
previously.  I called 
Kenwood and finall spoke to someone in the sales department.  I was told that 
no 
info was currently available but that I would be contacted once it was 
available.  It will 
also be posted on Kenwood's web page.

I am posting this because I feel that hams on contest/dx peditions could make 
great 
use of this type of power supply, and that one produced by a ham manufacturer 
such as Kenwood would most likely not have the noise problems (or fewer) than 
one 
produced by the typical OEM.

73, Rob
------------------------------------------
Rob Shapiro - ND3A
Annandale, VA
Potomac Valley Radio Club
Internet: nd3a@cais.com
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