[R-390] Re: Ballast Tubes/transmitting receivers/Dogs and Cats sleeping together...

[Tom Norris]

I suppose the common 12BY7 ballast replacement could by used
in a simple MOPA circuit, or maybe crystal controlled like a Tuna
Tin transmitter...

Hmmm



>Has anybody ever investigated the possibility of switching the 3TF7 out with
>a triode-pentode that could do double duty as a ballast and a transmitter?
>Seems like an R-390A/URT Transceiver could be a possiblilty. Heck, you
>already have a T/R relay built in, all the power supplies you need, and
>crystal oscillators. Probably too much to ask for plate modulation, but for
>CW it might be a great rig, if a bit on the overdesigned side on the
>receiver part.
>Jerry W5KP
>