Gracias Andrew! Ill try that method to verify the MM output.
Also, after reading this thread, I think I will put the dwell meter away for use on old cars with point ignitions rather than FV DC evaluation.
https://forums.pelicanparts.com/porsche-911-technical-forum/821090-cis-lambda-frequency-valve-signal.html
I may pick up an oscilloscope too just for fun. It may be helpful in validating the MM DC reading.