[Elecraft] Power Supplies

Bert Craig wa2si at arrl.net
Sun May 6 17:57:22 EDT 2012


I think those questions are better suited for the manufacturer/distributed rather than Mark. Mark paid his money and took his chances and it appears to ne working out for him. He was kind enough to share his individual experience with us for our benefit. For those who require a tad more in-depth proof prior to purchase and/or endorsement, the company should be taken to task.

Having said that, I do have my own personal opinions re. the intended demographic for this product... Definitely NOT QRP - hihi.

73 de Bert
WA2SI

"...and all the pieces matter."
                  -- Det. Lester Freamon, BPD

Sent from my Verizon Wireless 4GLTE smartphone

----- Reply message -----
From: "Fred Townsend" <ftownsend at sbcglobal.net>
To: <amsctalx at comcast.net>, <elecraft at mailman.qth.net>
Subject: [Elecraft] Power Supplies
Date: Sun, May 6, 2012 13:55


Hi Mike:
Thank you for sharing about the Bulldog supplies. I have never heard of them before. My first reaction to the pictures is sooo ugly only its mother would love it. The spec sheets are clear but leave out a few things. Maybe you know. 

If it is a switcher what is its noise specification? 
The mounting tabs look like they would scratch the desktop. Are there rubber feet? 
Where are the power pole connectors? I guess you would run it with a Rigrunner.
I didn't see any mention of certifications. UL? CE Mark?
I like to buy American. Where are these made?

73
Fred, AE6QL

-----Original Message-----
From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of amsctalx at comcast.net
Sent: Sunday, May 06, 2012 9:22 AM
To: elecraft at mailman.qth.net
Subject: Re: [Elecraft] Power Supplies

I recently purchased a Bulldog RDC-55 55A power supply from Rivergate Distributing. It's compact, runs cool, is very quiet, looks good on an oscilloscope and was designed to be used in a high-RF environment. I cannot honestly state that I have been running it for twenty years without a problem, but those that have seem to find them trouble-free. 

I think it's a shame that more people don't know about them. .. 

http://www.rivergatedist.com/PowerSupply.htm 


Mike Alexander - N8MSA 

amsctalx at comcast.net 

----- Original Message -----

On 5/6/2012 6:12 AM, mikefurrey at att.net wrote: 
Good Morning Ya’ll 

This morning my Astron SS-30M (used regularly for 15 years) went south in a puff of smoke and voltage on the meter was fluctuating around 10VDC. No damage to the K3. WHEW! 
I pulled out my Astron VS-50M (haven’t used in 15 years) and its voltage was also fluctuating a bit (maybe needs to reform caps?) (I’ll try it later on a ... should I say ... a radio I will not worry about too much ... or build a load for it). At a local swapfest last weekend a seller had several Astron power supplies that he was selling as parts units. He commented that they were unreliable. 

That being said, what are the groups recommendations for a power supply? 

73, Mike WA5POK ______________________________________________________________
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