On Apr 14, 2005, at 1:35 AM, Philip Pemberton wrote:

> FYI the device you're talking about is called a "capacitive discharge
> resistance welder". IIRC spot welders are completely different devices.

I swear I saw a device in one of the labs that looked EXACTLY like a
spot welder designed for doing things about the size of battery tabs
(perhaps for making thermocouples, given the nature of the lab?)
Biggish (10-20lb) transformer with vice and funny look clamps connected
to the secondary...  I mean, out of a 10A 110V circuit, you ought to be
able to get 100A @ a couple volts, which should be plenty for spot
welding moderately thin strap to moderately small pieces of 
not-too-thick
battery, right?

But I never did find someone to ask if that's what it actually was...
(thermocouple welder as a google search turns up some similar looking
devices, though...)

BillW
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