[Amps] Astron Power Supply replies

[Gary Smith]

Gentlemen,

Thank you all so much for the replies regarding upgrades, suggestions 
and green wire dealings with my two Astron power supplies. The only 
reason I asked that here was the mention of the green neutral being 
left in a floating condition on at least some of the Astron PS. I 
need to repair the one that is Kaput and am looking around for a 
LM723 around here as the links mention that to be a common culprit, 
I've used them before in several projects and probably have several 
gathering dust in an old Radio Shack package. If not, I see them 
listed quite inexpensively on ebay and will pick up several for 
future issues I may encounter.

The four 2N3771 transistors really do run hot on the VS-35M, can't 
say I touched them on the RS-35M but surely they are the same, the 
circuit between the two PS are very similar. I'm assuming I can use 
any off the shelf 2N3771 & the .05 5W wirewounds will balance them 
fairly. On the PS I made some years back I used 3055's and I have 
several of them unused, would these be more rugged or should I stick 
with the 3771 as it comes with?

Mention was made of Arctic Silver; I have some Arctic Silver 5 & some 
of their Ceramique which I too used in overclocking computers. I can 
certainly remove & replace the heat sink compound with this, not a 
big job and using it did lower my core temps on the computer 
processor.

I really appreciate the links and help. 

Thanks & 73,

Gary
KA1J

---
This email has been checked for viruses by Avast antivirus software.
http://www.avast.com