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Old December 31st 08, 02:18 AM posted to rec.radio.amateur.homebrew
Lynn Lynn is offline
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First recorded activity by RadioBanter: Nov 2007
Posts: 34
Default 01 tube as RF amp..


"Tio Pedro" wrote in message
...

"ken scharf" wrote in message
...
Even with it's 'hard vacuum' the 01 didn't have as good a 'getter' as

later tubes and would arc over with more than 130 volts or so. It was
used as a transmitter before the type 202 tube became widely available,
but was a QRP thing, less than a watt input.


Will it have enough output to drive a 245?

I doubt it very seriously. I suppose if perfection was achieved in matching
the 01's output to the 245's grid was possible (I, for one cannot do it),
the losses would be enough to tickle it into the beginning of class C.

Ken's idea of going to class A might work, but the 245 would be running
in a very inefficient mode. There is one website showing a couple of
45's running in AB2 (how do you make a sub 2?) . Another website
has some interesting stuff with 245 chatter...... (you may have already
seen it, but just in case..........

http://www.antiquewireless.org/otb/29amp.htm

Old Chief Lynn, W7LTQ and a couple commercials