Re: [TenTec] Ameritron amp issues and looking for a Centaur

[Ed <w3nr@comcast.net>]

Rick Denney wrote:

> > I would check whatever is in the filament CT.......
> Ed, thanks for the response. That's what I'm thinking, but I've
> already checked it all. The AL-811 is simple--there is the T/R relay,
> the input tank switched with the input bandswitch, and a couple of
> capacitors that protect the input tank from filament biasing voltage.
> The biasing voltage is there--the filaments are lit. I was sure it was
> one of those caps!
>
> Rick, KR9D
Where are they applying cut-off bias ??  and is not the metering circuit 
also tapped off the CT ? I would think in a GG amp, there would be zero 
grid current until some drive is applied. Are the grids strapped 
straight to ground or are they floating via a cap/resistor combination.
Is this the 3 or 4 tube version ??

Ed W3NR