Re: shortcut?

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

Original poster: "Shaun Epp by way of Terry Fritz <twftesla-at-qwest-dot-net>" <scepp-at-mts-dot-net>

Yup, I agree with this post.   I'm a Biomed Technologist in Manitoba, Canada
and the defribrillators I work on  Hewlett Packard  and M.D. use 5kv -at- 35uF
caps in them. That works out to ~~500 joules. Anything I've seen on can
crushers and the likes used 1 - 2 kjoules.   Good start to  a collection :-)

Then 30mH inductor, I've used to deguass CRTs and similar apps.   Becare
though, I used straight 120VAC on it and it draws a few amps... safe but, it
gets hot.... so I use it very intermittantley.   The charger cct in most of
the ~~modern defibs  is like a flyback oscillator  and sounds/operates like
a camera flash.   Peak currents expected are ~50amps at a few Kv applied to
the patient.   Its assumed that a patient load is 50 ohms.

I hope this help  :-)

~~^~^~^~^~^~^~^~^~may the arcs be with you~^~^~^~^~^~^~^~^
-----Original Message-----
From: Tesla list <tesla-at-pupman-dot-com>
To: tesla-at-pupman-dot-com <tesla-at-pupman-dot-com>
Date: Monday, June 04, 2001 12:46 PM
Subject: Re: shortcut?


Original poster: "Herwig Roscher by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<herwig.roscher-at-gmx.de>


Jim Lux wrote:

> The voltage is typically a few hundred volts

Jim, All!

The defib, I've just dismantelled, contained (amongst other
components):

- pulse capacitor 50 µF/4 kVDC (CSI)
- step-up-converter 24 VDC to 4 kVDC
- HV relay (Kilovac) for defibrillation
- HV relay (Pickering Electronics UK) for discharge trough resistor

Another defib contained a pulse capacitor 32 µF/6 kVDC (also from
CSI).

The HV cap discharges through a 30 mH coreless coil.

I collected the defib from the scrapyard and it was still working!
Defibs are very dangerous "toys", which may easily burn holes into
your skin or even kill you. Please be careful!

Regards,

Herwig