"David Forsyth" wrote in message
...
Would it be possible, though not necessarily practical, to make a reciever
for the modern FM broadcast band, using only pre-WWII tube technology? I
know they had FM on a lower frequency band at that time. What sorts of
tubes could one use from the 1930's to make a reciever that could tune in
the modern FM band? I'm sure I wont actually attempt such a thing,
especially any time soon, but just wondered how difficult it might be.
Are
there any schematics or construction articles from the late 30's about
making FM radios that might be adapted over to the new FM band?

just curious,

Dave



The RCA 10T tombstone used the new metal tubes, and had an
UltraShortwave band that reached to over 60 mc. Unfortunately,
most of the RCAs had serious problems with the LO dropping off
at about 50 mc orso, very few of the radios ever seemed to actually
tune that high! I think I've seen one example that worked across the
full tuning range without twiddling the circuitry to make it work.
Bu, in 1936, probably no one even noticed, or cared.

Pete