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Old April 29th 06, 11:15 PM posted to rec.radio.amateur.homebrew
Highland Ham
 
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Default 13.8V high current power supply

James Thompson wrote:
I would cobble together a simple, say lm317 regulator to drive your series
pass driver and see what you come up with under some small loads. You may
be ok with that big transformer. The power supply I built uses 4 2n3055 in
parralel like what you have. Have fun.. JTT

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There as an exellent design in RadCom Oct 2001 ,pages 34-35 by OZ1XB ,
with a LM317 , TIP32 (PNP) and 2xBUV20 (NPN) ,with the latter
replacable by 4x2N3055 or whatever you have .
Simple,rugged ,reliable design.
It incorporates sensing lines ,ensuring the full set voltage under all
load conditions at the consuming apparatus.

Frank GM0CSZ / KN6WH