Re: gEDA-user: [OFF] high current amplifier

[John Griessen <john@xxxxxxxxxxxxxx>]

John Doty wrote:

> And finally, the real issue here is the current required. 100 amps  
> will melt the wire in any audio transformer I've ever seen.
> 
> Everybody seems to think Mark's soldering gun suggestion is a joke,  
> but I don't know. I think I'd get one, pull the transformer, measure  
> its characteristics, see if it might work (maybe a couple of them in  
> series/parallel or something). They're light, cheap, and the closest  
> thing to the requirement here I can think of. I'm sure they won't run  
> at full power all day without overheating, but for a test set that  
> might be OK.

The classic 10kW spot welder by Miller is now cloned and available
at Harbor Freight cheap.  It's a similar, beefier transformer as
a quick hot or weller solder gun.

John
-- 
Ecosensory   Austin TX


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