----- Original Message -----
From: "Jim Thomson" <jim.thom@telus.net>
To: <amps@contesting.com>
Sent: Friday, May 04, 2012 10:28 AM
Subject: [Amps] The power of an oversized electrolytic capacitor
> Date: Thu, 3 May 2012 19:20:24 -0700
> From: "k7fm" <k7fm@teleport.com>
> Subject: Re: [Amps] The power of an oversized electrolytic capacitor
>
>
> We have been talking about the danger of having too much capacitance in
> the
> power supply filter capacitor. I just read that large capacitor banks are
> used to fire off nuclear bombs. That puts takes the discussion to a new
> level. Also, I wonder if carrying a large electrolytic around might be
> violating some federal or state law about having possession of bomb making
> equipment? I can just see some prosecutor demonstrating the power of a
> charged 300 ufd @ 10,000 volt cap - especially if the owner was a cb
> operator.
>
> 73, Colin K7FM
>
> ## where do you folks get the idea that they are bombs. I have yet to
> see one of em,
> from hundreds so far... that up and blow their brains out. Toss that myth
> out the window.
>
> ### BTW, My latest creation uses 24 x 10,000 uf @ 450 vdc caps, all
> in series..
> and charged up to 7700 vdc. That’s one bank. I built a 2nd identical
> bank of 24,
> and parallel the 2 x banks together... onto a common buss.... via hv
> fuses of course.
> I use a 1.1 kw CCS, energy discharge rated glitch 50 ohm R. And yes,
> you can cro-bar
> it all day long..and nothing happens...just a blown HV fuse. ( via a vac
> contactor of course).
>
> ## This is all old news..at least for over 5 years now. The concept
> works very good. It amounts
> to a brute force regulated B+ supply.
>
> Jim VE7RF
Youre missing the point Jim and no one is expecting the cap to grenade
unless it has a serious failure.
OTOH a short anywhere in the HV circuit dumps all of that stored energy in a
bright flash that WILL create lots of damage if allowed to occur.
Carl
KM1H
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