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Old 05-13-2019, 11:50 AM   #4
Solder Sloth
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Join Date: Nov 2012
City & State: CO
My Country: USA
Line Voltage: 120VAC 60Hz
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Posts: 4,143
Default Re: Frequency measurement

the multimeter. you can only get a rough idea.
You could measure the voltage and see how much it drops, that's the only other thing you could do to get an idea of what's going on.
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