I promised a picture... > On May 9, 2019, at 4:33 PM, Mac Doktor <[email protected]> wrote: > > I have a Systron Donner frequency counter with an integral cord that's 120V > only. Some idiot chopped the ground pin off. With it plugged in and turned > OFF I can feel a tingle when I touch the case. I measure 54V RMS from the > case to ground. > > I asked a friend who's an EE about it and he told me that the EMI filtering > contains resistors from both hot and neutral to ground. In his words, "Put a > damn grounded plug on it!" I installed a new grounded plug and the tingle is > gone. Zero volts from case to ground. > > I'll post some pictures of it later.
And here it is: Up next: video of the counter in operation. Terry Bowman, KA4HJH "The Mac Doctor" "If only you could see what I've seen with your eyes."—Roy Batty, Blade Runner -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/E4855182-33AC-421A-B802-EDC69D2620CD%40gmail.com. For more options, visit https://groups.google.com/d/optout.
