[Prev][Next][Index][Thread]
camera caps
----------
From: Harri Suomalainen [SMTP:haba-at-cc.hut.fi]
Sent: Friday, March 27, 1998 3:37 PM
To: tesla-at-pupman-dot-com
Subject: Re: Multi-layered Secondary
>> I suspect that the 180 Hz system is basically in the same category. The
>> stored energy in 15 kH at 55 mA is about 20 Joules. Potentially lethal,
but
>> probably not (it's about what is stored in the on camera flash unit in
one
>> of those disposable cameras, which darkroom operators get zapped by all
the
>> time).
>Not to pick nits here, Jim, but I have a hard time believing that those
little
>cameras store 20 joules. Even if the cap was 200uF at 200VDC, (small
>for a photoflash cap, but larger than what I remember seeing in the dozen
or
>so disposable strobes I've got lying about somewhere) you'd only get 4J.
I have seen caps in the range of 350uF charged to 350V. That would give
about 20J. Usual values for models I've got range at 220-350uF/350V.
They do give you nice shock indeed. I would definately not rule 20J out
as impossible.
--
Harri Suomalainen mailto:haba-at-cc.hut.fi
We have phone numbers, why'd we need IP-numbers? - a person in a bus