Re: Oil Caps

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

Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <Hollmike-at-aol-dot-com>

I have to agree with Ed.  If you can stand the large size of them, they are
practically indestructable.  Mine were used for probably over 20 years in an
old 'spark source' spectroscopy instrument.  The unit worked fine and the only
reason it was taken out of service was that the analytical technique is
obsolete and the operator of it retired, so the lab chose not to continue using
it. 
Mike 



>
> . 
>
>    Good design if you can stand the space and mess.  Capacitors of this 
> type were used in "the good old spark days" of radio/wireless, and an 
> early 1920's QST magazine has a descrtion of an 0.01 ufd, 25 kV 
> capacitor which the builder apparently thought was a success.  Advantage 
> is that in the event of dielectric breakdown for any reason the oil can 
> be removed and filtered, the plates cleaned if necessary, and the whole 
> thing reassembled.  Sounds bullet proof! 
>
> Ed 
>
>