Yes, but the ceramic is only 1/2"-3/4" in diameter, and thus power limited. I've seen at least one used that way which
ended up in two pieces with lots of plastic shrapnel produced.

--
Crazy George
the ATTGlobal.net address is a SPAM trap. Use the att dot biz version.

"Cecil Moore" wrote in message ...
W9DMK (Robert Lay) wrote:
The other responder described an "adjustable" vacuum capacitor. The
more general vacuum capacitor has no bellows. The plates of a vacuum
capacitor are concentric or coaxial conducting tubes, which is not
that important. The important things are that they are sealed in
relatively heavy glass envelopes with electrodes at each end and are
capable of handling high RF currents at high DC potentials with
extremely low leakage.

Can a doorknob cap rated at 20 KVDC be used to
resonate a small loop?
--
73, Cecil http://www.qsl.net/w5dxp


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