Johannes Ciobanica are you using the OZMO or CUTDOWN cups on your CK24 torch?  Or both?  If both, which do you use most?  Thanks and Happy New Year!

Francisco Soto A #5 standard cup or a #5 stubby on a gas lens works great on Aluminum TEE joint with 3/32 tungsten. I use a #6 stubby with 1/8 tungsten.

Good luck with the gas swap.

Great video JD.  I was surprised to see you weld this job with 3/32 rod...good to know.  That 140 MP is an impressive 120VAC machine and is very capable.  Thanks for the vids showing the capabilities.  The 1/4" pipe for the job was for the pilots on the PCV (pressure control valve).  It senses upstream and downstream pressure and controls the pressure on the downstream side (low side).   Glad to see you back up making vids.

😂 deadender55...thank you Sir!

I would have picked the one with foot pedal amperage control (important for heat input control / not exceeding interpass temp), "finer" digital amperage control, and HF arc start (nice to have).  With the preheat and thickness of the material you are welding it doesn't look like high amperage was necessary.  The Miller Maxstar?.  I need one of those Lincwelder 250 DC Motor Generator welders for my shop.  Old school!  Thanks for posting these up Brad...interesting stuff!

I always pick up at least one new tip from your videos.  I like that you provide biz tips, tool tips, mechanic-ing tips, and welding tips.  Thank you Sam.

Was also able to get the manual from Miller.  Apparently Miller and ESAB bought AIRCO (50/50) but the welder was made by AIRCO before the purchase.  This manual is dated 1964.  Cliche, but they don't make them like they used to!

Cleaned up, will install new power cable tomorrow and she will be ready to strike an arc.

A shot of the inside. Not much to it but that transformer is heavy!