[TVARC] 12V DC 20A Switching Power Supply recommendations

[Rich Erlichman]

Larry,

 

I remember the old SPS’s as well, and that was why I held onto my old linear power supply at least until last year. The technology has improved a great deal since the SPS’s were first developed. They are much, much quieter and more reliable, and give off less heat. 

I had an Astron 25amp supply which took up a great deal of desk space. The MFJ-4230 is a nice (and small) 30 amp 12vdc supply which gave me room to add extra equipment onto my desk.

 

73,

Rich, ND4G

 

From: tvarc-bounces at mailman.qth.net [mailto:tvarc-bounces at mailman.qth.net] On Behalf Of Larry Sheridan
Sent: Wednesday, December 29, 2021 5:14 PM
To: TVARC Reflector
Subject: [TVARC] 12V DC 20A Switching Power Supply recommendations

 

 

Howdy all -

 

Revamping the shack desk here & looking for recommendations on 20A switching power supplies Re reliability, heat generation, digital/RF noise generation, size, costs and features.  Had an open-frame 50A switcher years ago out of some unknown surplus equipment that generated S9+30dB square wave noise from 60 Hz to about 900 MHz, put me pretty much all the way off of using SPS's at all, but need to reconsider due to size constraints on this project.

 

All info positive and/or negative welcomed, TIA.

 

Best 73,

 

Larry Sheridan K4LES

307-630-5697

 

 

 

  

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