Your mention of the Central Electronics 20A brings back fond memories of my
shack shortly after graduation from HS. I bought a brand new 20A from a
store in Philadelphia's electronics row. I used a conversion kit sold by CE
to create a VFO from a war surplus "command set". In addition to the 20A, I
also bought a "signal slicer" kit from CE and used it with my Hammarlund
HQ140X. Finally, my final was a pair of 100TH triodes
http://www.uli.de/tubes/100th.htm running in grounded cathode mode. The
final used a B&W plug-in link coupled tank coil. Yes, those were the good
old days. I had as much fun with that equipment then, as I do now with my
Ten-Tec Orion driving a Drake L-4B.
John, N9JG

"COLIN LAMB" wrote in message
.net...
[stuff]
I have used a number of BC-221/LM frequency meters into vfos, turned one
into a regen receiver and presently have a solid state LM meter as a vfo
in my Central Electronics 20A. It has a crystal controlled mixer for
output on the different bands.
[stuff]