I normally don't entertain situations like this, but I've got an older friend who has not yet adapted the modern day mentality of throw it out and buy new. Plus I like him and owe him one.
He's got a fancy used tread mill that stopped working. It has two circuit boards and neither one of us is qualified to troubleshoot. He doen't need all the fancy intgrated controls, just a reostat. The motor is DC. Now if it was AC I'd just get a suitable control (3-speed or variable) and mount it to the unit by-passing the boards. Can I expect to be able to find, for less than the cost a working used treadmill, an inverter and speed control, or are we talking industrial control = BIG $$?
