? The floating cathode/DC grounded anode amplifiers that I have heard
about had tank circulating current had a water-cooled tube, vacuum-caps
and a water-cooled inductor. Reducing the L of the anode choke
obviously solves helps to resolve the resonance problem, but perhaps
there is some advantage in eliminating the DC-blocker cap at such power
levels by going to the DC-grounded anode configuration?
>Bill:
> You asked for comments, so here goes (short and sweet). I have never
>had to spend more than about half an hour with some magnet wire and pieces
>of PVC
? PVC does not have a low dissipation-factor. ABS and G10 are about the
best.
>or fiberglass tubing to come up with a good plate choke. How can you
>possibly compare that to all of that rigamarole you have to go thru to
>float the
>cathode up to B-? No contest!
>
>73
>Eric von Valtier K8LV
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