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Old 27th December 2019
Lives for gear
Radardoug's Avatar

OK, so do you know if your multimeter will read a.c. at 1kHz or above? Most of them dont. You really need an audio millivoltmeter or similar. Even an old vtvm is probably better than most digital multimeters. The heath company made them as kits in the old days.
Where did you get the idea that the meter reading needed to be doubled? Wrong! A good meter should be easy to read and calibrated.
And that Youtube video tells you nothing!