Re: Toob coil questions

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Dr. Resonance" <resonance-at-jvlnet-dot-com> 


Be sure to run a parasitic choke on each plate cap.  This will help
eliminate the parasitics which in many case will cause your plates to begin
to glow red.  It removes the wasteful and unwanted HF oscillations.

Dr. Resonance
 > The usual sorts of designs have a fairly high source impedance for the
grid
 > (after all, it shouldn't draw any current when biased negative), which
 > limits the current in the forward direction if the grid voltage goes
 > positive.  However, if there is energy storage or biasing components in
the
 > system that can support grid current, #1 can be a significant problem.  I
 > don't have the circuit here in front of me, but part of the idea behind
the
 > grid leak is to pull the grid negative, no?
 >