>-----Original Message-----
>From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] 
>On Behalf Of Lawrence Lile
>Sent: 20 October 2004 13:49
>To: Microcontroller discussion list - Public.
>Subject: RE: [EE]: Battery Spot welding...
>
>
>That is really interesting. 
>
>http://www.hobbyspotwelders.com/HS300A2.php
>

I'd be dissapointed to have made something that badly for my own use, let
alone to sell on a comercial basis!.  Just look at the grid of holes drilled
for ventilation!

680,000uF is a fair bit though, I guess they are using an SCR to fire the
capacitor bank.

Mike

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