Hey Iggy,

I am in the process of converting my buzzbox to something resembling a 150A
TIG supply. I already have the AC-DC section figured out, as well as the HF
area.

I believe you used SCRs in a circuit you used to control the output current
of one of your machines, and I am very interested in this. Do you by any
chance have a schematic of this section of your circuit, and/or any other
reference schematics of going about this topology for a high current supply?

Thanks for your help,

Jon