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duncanlowe · 6th Aug 2022, 5:31 pm

Can you get at the low tension side of the system? Often the stop switch simply grounds part of the system so when running it's not grounded, so in theory you could measure across the stop switch. Away from the HT stuff but might still be spikes.

6th Aug 2022, 5:31 pm	#2
duncanlowe Nonode Join Date: Jan 2016 Location: Stafford, Staffs. UK. Posts: 2,532	Re: Using a dmm as a tachometer Can you get at the low tension side of the system? Often the stop switch simply grounds part of the system so when running it's not grounded, so in theory you could measure across the stop switch. Away from the HT stuff but might still be spikes.