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Hum/Buzzes are most likely due to a faulty filter capacitor in the power supply. Caps can fail as they age. This noise can be viewed/measured (at the filter cap) with an oscilloscope by any competent electonics tech. bret --- jpw77@together.net wrote: > I'm looking for help with my EH 16 second delay. The > unit hums/buzzes loudly > when powered up. All the functions of the unit seem > to work (the hum gets > effected) but it's unusable. I'm guessing it's > something to do with the power > supply, but that's just a guess. Any ideas on this > or reccomendations for > people who service these still? Oh how I miss it... > > Jon Williams > > __________________________________________________ Do You Yahoo!? Thousands of Stores. Millions of Products. All in one place. Yahoo! Shopping: http://shopping.yahoo.com