OT: Sheet metal and UNF screws (was Re: PET and the IEEE-488interface)

[John C. Ellingboe]

Philip Pemberton wrote:
> 
> In message <3.0.6.32.20050331202354.00ab3460 at pop-server.cfl.rr.com>
>           "Joe R." <rigdonj at cfl.rr.com> wrote:
> 

snip

> 
> Before anyone asks, I'm trying to hack together something similar to the
> "hobby spot welder" on <http://www.hobbyspotwelders.com/>. I've got the
> computer-grade capacitors (five rather large Cornell Dubilier DCMX series

snip

Why not just go to http://www.harborfreight.com and get a real portable
spot welder for $199 (110V 1.5KVA) or $219 (220V 2.5KVA).  Just
substitute your own home made adapters/electrodes for special setups.