[Amps] (Fwd) Re: Passive grid triodes?

[gdaught6@stanford.edu]

Gerald wrote:

> Tetrodes operated as grounded grid will benefit from the negative
> feedback  and grid current can be drawn as a result.

Use great care in selecting what tetrode you use if you want to draw 
grid current!  Many of the modern high-power tetrodes (4cx800 to name 
one) have VERY SMALL grid dissipation capabilities!  It's pretty easy 
to destroy the control grid in these sorts of tubes.  If you're 
talking about a 4-1000A, though, then grid dissipation is much less a 
problem.

73,






George T. Daughters, K6GT