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409, 41x, 42x, 44x, 48x -
14x, 18x, 1801 Nanovoltmeters
15x, 18x Null Detectors/Microvoltmeters
Thanks for any help afforded,
Test & Evaluation Tech
The Boeing Company
- Keithley Applications
- Posts: 2841
- Joined: June 10th, 2010, 6:22 am
- Country: United States
Even the Keithley service dept technicians are not familiar with instrument.
It went obsolete in 1993 and last repair date is 1999.
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