If you're the type that likes to dig into the nuts and bolts when there's a problem, Sam's repair pages are an invaluable resource.

If you’ve ever had to troubleshoot lab equipment—particularly anything to do with lasers, but other standard equipment as well—you may already have run across Sam Goldwasser’s pages.  The pages contain hundreds (if not thousands) of tips, tricks, and schematics for investigating problems associated with all sorts of equipment.  The entry on ultrasonic cleaners is a great example.  It includes a schematic of a representative cleaner and some specific pieces of advice on approaching repairs.  He’s always careful to provide safety hints, too—and he will provide specific advice—but only if you’ve already made your own energetic, good-faith effort to solve the problem yourself.

For further information visit repairfaq.ece.drexel.edu.

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