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11 October 2024
4 September 2024
1 September 2024
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+218
approx. year from schematic
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Created page with "{{Instrument Sidebar |manufacturer=Keithley |model=610B |class=Multimeter |series= |summary=Electrometer |image=Keithley 610B front.jpg |caption=Keithley 610B, frontal view |introduced=(?) |discontinued=(?) |designers= |manuals= * Keithley 610B Manual (OCR) }} The '''Keithley 610C State Electrometer''' can measure voltages (with a very high input resistance), very low currents, high resistances and charge. It used electrometer tubes a..."
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