Peter
Created page with "{{Instrument Sidebar |manufacturer=Keithley |model=502 |class=Multimeter |series= |summary=analog milliohmmeter |image=Keithley 502 open.jpg |caption=Keithley 502 |introduced=1960 |discontinued=(?) |designers= |manuals= * Keithley 502 Manual (1975) * Keithley 502A Manual (1975) }} The '''Keithley 502''' is an analog milliohmmeter. There is also a 502A. {{BeginSpecs}} {{Spec | Resistance | 1 mΩ..."