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Re: World War II Capacitors
From: Micheal Huff[SMTP:msnock-at-theonramp-dot-net]
Sent: Tuesday, July 01, 1997 12:51 PM
To: Tesla List
Subject: Re: World War II Capacitors
Tesla List wrote:
>
> 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
>
> Greetings,
>
> 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.
I'd say it's definetely worth pursuing. Mica is excellent for RF use.
These should run fine at 7.5kV. At $7 a piece you don't have much to
lose.
Mike
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