[Milsurplus] BC-348 - Power Supply

John Hutchins jphutch60bj at gmail.com
Mon Feb 4 22:26:17 EST 2019


Have made several power supply versions for my BC-348R.   I am close to 
what I want.  BUT, big  BUT,  I have a heat issue. Outside in free air 
the power supply stays on target +/- 2V.   All buttoned up inside the 
BC-348, voltage drops slowly from 225V- to - 190 V  G.T > 1.5  hrs time 
and falling.  Stuck a wire thermal probe into the unit, temperature 
~37-39 C  102F.  I am not surprised the voltage dropped, but had no Idea 
it would be > 10 %.  Any ideas/Suggestions on how to wrangle this issue 
please contact me "off" the list.   I have a pic, windows .BMP file of 
the schematic.

Thanks

jphutch



More information about the Milsurplus mailing list