TTL Chip TIG Welder
David Barrett has taken TTL logic to the extreme! No his logic isn’t controlling a photocopier, printer or some obscure computer equipment. David’s TTL handywork is controlling a 180 Amp TIG Welder. “Many modern welder front panel’s were looked at and many dozens of spec sheets studied to gain a list of requirements, then it was simply a case of reproducing those function’s simply and cheaply. The descision was made