[Amps] Super Cathode Driven Tetrodes

[Fuqua, Bill L]

  Someone had posted that Super Cathode Driven amplifiers are unstable.

Can someone elaborate on that notion?


It does not make since due to lower gain and that screen grid is directly connected to ground.

I hope in the future to do some experimentation on this design. Goal is one 4CX300Y driving 3ea

for legal limit. Neat thing is that just about all the tx, driver power finds its way to the output.

This tube has 400Watts plate dissipation.

73

Bill wa4lav