Sa-200 doesn’t have a constant voltage output, it’s a CC machine only. This means you need a voltage sensing feeder, and they’re quite a lot harder to build.
Best bet is a second hand Lincoln ln-25.
Currently I’m using a minarcmig evo200…. But in the past I’ve used: Paton pro250 with separate feeder, sip ideal 120n (old one), and a Lincoln ranger 9 with a spool gun.
All ran it without issue, although the Paton probably tipped the scales as it has pulse.
DIY ASHP retrofit in a '46 end of terrace with a 50mm cavity - rads in the house, ufh in the extension.
Works brilliantly and costs less in electric than we were spending before on gas, for a larger house with greater comfort. Win-Win
If you want to make real money messing about with pipework, emergency drainage work is where it’s at. No-one is going to argue with you when their bathtub is full of ….. and their kids are screaming ‘daddy I need the loo’…
This whole ‘low voltage’ requirement is bogus. Any half decent transformer mig will run it ok.
*hugh, mig brazing everything in site for the last 10yrs
From memory, the flywheel is inside out on these, with the magneto and points mounted just underneath the pull start, and easily serviced without removing the flywheel.
Are you taking it off to do the crank seals?
Great results there, pleased to see you’re progressing well with the process.
I’d never go back to er70 for bodywork now, this just makes it much faster and easier imho.