Running hours meter project

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This is basically a very simple project to keep track of running hours on my amp's output tubes. Is quite versatile, and can be used as an hours meter on almopst anything, such as in a phono preamp to keep track of hours an a cartridge. Its basically a $20 meter that draws almost no current, operates on a wide supply voltage, stores running hours, and is resettable when you change tubes.
Details of the project on my webpage shown below.
Mike

Running hours meter project (Open in New Window)

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Topic - Running hours meter project - mikebarney 11:02:30 06/08/07 (0)

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