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I have a 12volt home made power supply similar to Astron models. I was
told it could handle 30A. The pass transistors are missing and I have
some 50 amp NPN darlington transistors on hand I was considering using
for replacements. Can you think of any reason these could/should not
be used.
Good web page for your overall education and repair.
http://www.repeater-builder.com/astr...ron-index.html
Regulated Linear Power Supply Construction, or What's inside your AstronT?
by David Metz WAĜAUQ
"Power Supply Analysis"
This is a PDF of an article from the December 2005 QST