Behold, Pete KE9OA signalled from keyed 4-1000A filament:

........in the "RF Alley" that I live in, with
three 50kW MW broadcasters, no overload problems were noted. I will
keep all of you posted on the progress of the design.

All thanks to that diode-ring mixer ;-)

Thanks for keeping us posted Pete!

--
Gregg
*It's probably useful, even if it can't be SPICE'd*
http://geek.scorpiorising.ca