[Milsurplus] Western Electric 227B Receiver Oscillator

[David Stinson]

Programmable Oscillator for Western Electric 227B
"Xtal-Controlled" Receiver Channels.

Got around to building the little board to provide 4.265 MC 
into the WECO 227B mixer for 3880 KC receive on Ch. 2.
The programmable oscillator doesn't need any extra help 
in this stage.   This type only takes 16 mA to run.
I used a 560-Ohm resistor to a 5V Zener to drop the 
supply voltage from 13.5 down to 5V.  
http://home.netcom.com/~arc5/rxbrd.jpg

The output is just capacitively coupled to the plate
 in the double Xtal holder.   Wrapped the board in tape
with the lead from the coupling cap coming out and
bent over to make contact with the holder plate.
http://home.netcom.com/~arc5/rxbrdtape.jpg

Just slipped the little board into the empty side
of the crystal holder and it worked fine.
http://home.netcom.com/~arc5/rxbrdin.jpg

Now except for replacing the handset cord with an 
original 4-conductor 1930s telephone cord 
(on the way) and a few cosmetics, the set is all done.  
Four crystal-controlled channels on 
3870, 3880, 3885 and 3890 KC.   Receiver
can also be MO-tuned from 2-4 MC.  TX 9 Watts out.
Worked 8 states with it so far.  Best DX is Alabama-
not bad for 9 Watts of AM.
Programmable Oscillators run the 3890 TX channel.
and the 3880 RX channel.  I just found some 3890
crystals on Ebay so I'll probably install that in place
of the TX Programmable but the RX will likely stay.

GL OM ES 73 DE Dave AB5S