Re: HP41 repair Message #2 Posted by Karl Schneider on 14 Mar 2006, 10:50 p.m., in response to message #1 by Lars Johansson
Lars --
I had a fullnut HP-41CX from 1984 that, even when turned off, emitted a high-pitched sound interrupted by pulses from the clock (which your CV doesn't have).
I sent it to a US individual's sideline HP calc repair business; his standard service of ultrasonic cleaning and re-soldering where necessary, cured the problem.
-- KS
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