I've been slowly working on a curious project where I want to drive a 4-400A
in Class C over the range of 1.8-30MHz from a solid 1 watt at 50 ohms
(broadband solid state source).
Given the relatively high input impedance of the 4-400A, circa 10K ohms, and
its required neutralization, it appears that a parallel L/C circuit with bridge
neutralization is indicated. It will probably require about 10 watts drive
including circuit losses.
Now, the question. What is the best/easiest way to bridge the gap between
the above source (1 watt in 50 ohms) and the tube (10 watts at 10K ohms)?
It would be nice to keep the number of tuned components to a minimum.
73 & Good morning,
Marv WC6W
http://wc6w.50webs.com/
P.S. -- Not intending to predjudice any original thinking but, my best
tentative solution is to use something like an ol' 5763 or 2E26, with an L
network between the solid state source and a swamped grid (circa 1K ohms), and
its plate circuit sharing the 4-400A input circuit tank.
*
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