[BC] Re: The last of the tube 1000 watt transmitters

[c gennaro]

Your design was exactly the same as used by CCA in their AM1000D's in
the late '60s ;)

Chuck Gennaro
Central Wisconsin

 I used the Eimac
> design with the help of Bill Orr for the final amplifier, plus
> a pair of 4-400s for modulators. He recommended 4-250s, but I
> wanted beefy tubes there. I also used a brand new kind of crystal
> newly available from Northern Engineering. This was an AT-cut
> crystal mounted in a vacuum-tube envelope. These had never been
> used before in broadcast service so I got mine free. I also
> used a 6146 as a driver for the finals, and 12BY7 tubes for the
> crystal oscillator, a buffer, and two Class-A drivers for the
> Class AB modulators. The result was an excellent transmitter.

>
> Cheers,
> Richard B. Johnson
> Book: http://www.AbominableFirebug.com/