[Boatanchors] Re: Boatanchors Digest, Vol 27, Issue 25

[JOHNGRU at aol.com]

The tube used in the Michigan Radio 1 tube regen is a WD-12. This is a  WD-11 
with a std 4 pin base. This is a 1 volt filament tube, and uses 45  volts on 
the plate(1.5 volt dry cell for fils.& 45 volt B battery. Congtats  on finding 
a nice litte 1920s set.
 
john allen W4GQT
 
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I just acquired a Michigan Radio Co. 1 tube AM broadcast regen. 
radio.  The radio is missing the 4 pin tube. Anyone out there know which 
tube this  might use?