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11 October 2024
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Created page with "{{Instrument Sidebar |manufacturer=Keithley |model=615 |class=Multimeter |series= |summary=Electrometer |image=Keithley 615 1.jpg |caption=Keithley 615 frontal view |introduced=1969 |discontinued=(?) |designers= |manuals= * Keithley 615 Manual (1980) }} The '''Keithley 616''' is a digital electrometer with a 3½ digit Nixie display. The analog circuits are similar to the Keithley 602. {{BeginSpecs}} {{Spec | Voltage ranges..."
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