From: John Woodgate
Subject: Re: Small Tesla Coil
Date: Sat, 23 Nov 2002 21:06:22 +0000
Organization: JMWA Electronics Consultancy
References: <3ddcc905$0$22279$9b0f33e3@clyde> <3DDD385B.2200CDF1@cox.net>
Reply-To: John Woodgate
NNTP-Posting-Date: Sat, 23 Nov 2002 22:32:01 +0000 (UTC)
X-Newsreader: Turnpike (32) Version 4.01 <5Z8C9wtxbnpWyFnyfFzqmVF739>
I read in sci.electronics.design that Sir Charles W. Shults III
wrote (in ) about 'Small Tesla Coil', on Sat, 23 Nov 2002:
>Many new battery
>chemistries have been developed, but the best density ones are almost never
>rechargeable. Also, they use silver or other expensive chemicals.
The relatively old zinc-air battery has a very high power density, but
it self-discharges once unsealed and is not AFAIK rechargeable.
>venerable old carbon-zinc LeClanche cell was a pretty good method, and you could
>recharge it, albeit slowly. Sure, alkalines are more power dense, but they do
Rechargeable alkalines have been around for some years.
But no way are you going to run a hand-held van der Graaf generator or
similar from any sort of battery you could hold in your hand with it.
Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk
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