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Re: trouble with EICO 666

Usually "fully to the left" is a mechanical adjustment via a screw on the front of the meter.
But one other issue: Some tube testers will not supply large filament currents for long periods of time. For example 5U4 with it's 3 Amps of current may cause damage to the tester's power transformer if left on for more than a few minutes.


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  • Re: trouble with EICO 666 - Tiny Daddy 09:22:56 11/01/02 (0)


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