3 Jan
2010
3 Jan
'10
9:21 p.m.
On 3 Jan 2010 at 13:03, David Griffith wrote:
Doing some more reading, I think I've settled on
not doing FM with
tubes. I found some material on doing it with discrete transistors.
But I still want to play with tubes. I found a page on enhanced AA5
designs that, among other things, get rid of the hot chassis problem.
AA5 tubes seem very cheap and easy to find on ebay.
Why not start with some simply 1 and 2 tube designs. e.g. TRF,
regen/autodyne, superregen? Two-tube superhets are also possible.
Dig up some old radio experimenter's books from the 1940's and 50's
for suggestions.
--Chuck