Re: World War II Capacitors
From: Malcolm Watts[SMTP:MALCOLM-at-directorate.wnp.ac.nz]
Sent: Tuesday, July 01, 1997 1:07 AM
Subject: Re: World War II Capacitors
> From: Alan Sharp[SMTP:100624.504-at-compuserve-dot-com]
> Sent: Monday, June 30, 1997 8:58 AM
> To: INTERNET:tesla-at-pupman-dot-com
> Subject: Re: World War II Capacitors
> I just aquired a couple of capacitors dated
> from 1945!
> They are inscribed:
> Admiralty pattern 1059
> Condenser Mica 0.0011MFD +/- 5%
> Tests A) 6 Amps at 300 KC - 1 hour
> B) 28000 volts D.C.
> max wkg condition approx 80% test condition
> Year 1945
> They are rectangular blocks about 2.5* 3.5 * 3
> inches. Bolt terminals on top.
> I think that these will still be good and that
> 10 in // will perform as well as a 0.01uf
> commercial capacitor at up to about 7kV AC.
> The guy wants L5 for them (about $7).
> Any comments - is this worth pursueing or should
> I stick to polythene and tinfoil.
Grab them, grab them, grab them........ I have been more than
pleasantly surprised by performance of micas just recently. Those
sound great for a very high-L primary.