John T. M. Lyles wrote:
> The cathode (-) power supply may have a large steel canned capacitor
> around 1 uF. It is rated for high AC voltage in doubler service, and
> is usually polypropylene dielectric. If it is rated for few kV, it
> makes a very nice capacitor for tuned filter power supplies, across
> the appropiate choke to make a 120 Hz parallel 'trap'.
Collect a few together and they could be handy in the primary of a Tesla
coil.
Steve
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