Ultrasonic addiction, cannot stop.

67Dart273 said

I have a fair understanding of how these work, and I think I could repair one, assuming it didn't need something terribly expensive, like a bad transducer

Could you elaborate on how you searched for this, what brands/ models are good "suspects" and so on?

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I had been searching Ebay and craigslist sporadically and just happen to see this one ending at a weird hourwhich was just dumb luck I think. After reading http://deiwhy.blogspot.com/2008/12/diy-ultrasonic-cleaner.html I thought I could replace transducers (about $30 a piece on Ebay) or if I really got stumped would just send it to my Old Man, who could probably repair the Hubble Telescope with a soldering Iron and a multi-meter.

My guess is the most expensive electronic parts in them are the processing boards. .My original plan was to convert a stainless deep fryer with the board and transducers from a cheap or damaged cleaner.

The medical industrial ones are super pricey and I imagine they have the better parts. Just the baskets for them start at $200 so I imagine the quality of the innards would be better than most. I thought about taking the innards of one and epoxying the transducers to the bottom of a stainless deep sink or buffet tray.

Units that don't power up would be worth looking for. For me,Power supplies are the easiest thing I know how to fix. Once the boards, diodes, etc.. come in to play I'm lost.