RE: [TCML] pole pig ballasting

["Jim Mora" <wavetuner@xxxxxxxxx>]

Hi Bob,

Just to add sources: the Hobart 225A stick welder is the exact same box as
the Miller infinite arc. BTW, I think I remember opening my Hobart since I
was on the edge on a pig Jacob's ladder. Talk about a buzz box! The newer
front control units use an aluminum wound transformer. I would jump at the
top control unit as I believe they were CU transformers. You could put one
on both sides:-^)

Jim Mora

I have a tombstone maybe for sale as I acquired a hugh 300amp MILLER with a
sat-reactor and rheostat controlling ac/dc output from a school district. I
already sold my Hobart which was brand new!

-----Original Message-----
From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On Behalf
Of Bob Arenella
Sent: Sunday, August 31, 2008 7:25 PM
To: Tesla Coil Mailing List
Subject: Re: [TCML] pole pig ballasting


----- Original Message ----- 
From: "Jon Danniken" <danniken@xxxxxxxxxxx>
To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
Sent: Wednesday, July 16, 2008 4:37 PM
Subject: Re: [TCML] pole pig ballasting


Hi Jon,

                    I'm looking at two Thunderbolt welders for ballasting my

125KV X-ray transformer. One is a clean, older model with the shunt control 
crank on the top. The other is a newer Thunderbolt XL with the shunt control

crank on the lower front. Any preference as to which one I should go for?

                    Just how is the xfmr designed to allow a variable gap 
for current control?

Thank you,
Bob Arenella
>
> Buy an 240VAC arc welder on Craigslist; around here they go for between 
> $50.00 and $100.00.  If you get a Miller (Thunderbolt), it has an 
> infinitely adjustable shunt, whereas the Lincoln ("tombstone") units just 
> have different taps; you might find a Montgomery Wards or Century unit; 
> they also work fine, and are often a lot cheaper due to not being a 
> "brand" name.  The bonus is that you also get an arc welder to play around

> with.
>
> The way you hook it up is to short the "Work" and "Electrode" outputs on 
> the front of the welder, then wire the 220VAC feeding the welder in series

> with your variac.  Adjust the shunt or use a different tap until you get 
> the required current limiting.
>
> Jon
> _______________________________________________
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