[Elecraft] Gamma Research Very Small Switching Power Supply

[Robert Tellefsen]

John
Can you tell us how well regulated the output voltage
seems to be between key up and key down?
Thanks and 73
Bob N6WG

-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net]On Behalf Of John Buck
Sent: Sunday, October 01, 2006 3:01 PM
To: elecraft at mailman.qth.net
Subject: Re:[Elecraft] Gamma Research Very Small Switching Power Supply


I have had one of these supplies for several months.
It works as advertised and easily supports my rigs on 100W SSB and cw.
The advertising does say no radio noise and I have found none.  It has
modern 25 Farad super capacitors in series for a 5 Farad output
capacitance.

It is a perfect companion for my K2/100 dual box setup.

The fact that it is only 1.25 pounds with cable and so small opens up
lots of portable uses.
The input is 85 to 240 volts AC.

John KH7T

Subject:
[Elecraft] Gamma Research Very Small Switching Power Supply
From:
K4tmc at aol.com
Date:
Sat, 30 Sep 2006 19:10:25 EDT

To:
elecraft at mailman.qth.net


Just got my October issue of CQ and saw a review of this very small power
supply made by Gamma Research, model HPS-1a.  It is 3.37 X 1.55 X 5.25
inches,
rated at 13.8 VDC, 22 amps at 25% duty cycle and 5 amps continuous, and
weighing
only 1.25 lbs.  If you do not get CQ, then the company's web site
(www.gammaresearch.net) provides information.

Has anyone tried this with a K2/100 rig?

73,
Henry - K4TMC



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