[Milsurplus] The Search for a Retubed, Stable BC-375 Oscillator

David Stinson arc5 at ix.netcom.com
Wed Nov 19 10:23:30 EST 2014


Thanks to the many people smarter than me on these
excellent lists, I've learned a lot while fiddling-around
with the SCR-183 and the WECO 227B rigs.
Time to get back to re-tubing and stabilizing the BC-375.

Here is a diagram of the BC-375 oscillator in
its native condition:
http://home.netcom.com/~arc5/375osc.jpg

This is my first idea- to open the feedback to the
OSC grid and feed to Aux Osc. in there.
The original OSC tube will act as a "buffer/amp."
http://home.netcom.com/~arc5/375AuxOsc.jpg

However-it's a triode.  Neutralization might be
an issue.  If so, how would you accomplish it?
Ground rules:  No drilling, hacking or whacking.
Every change must be 100% restorable to original.

TNX OM ES 73 DE Dave AB5S



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