Pick up a 12v transformer (not power supply) from Rat shack, and wire an
AC cord to the primary. Measure your scope from the seconday.
You get isolation and a divide by 10 all in one package
> You definitely need isolation probes to measure direct AC (the line)
from
> the wall outlet. There are many reasons but the biggest is your
safety.
> Â
> I had a BK Precision 20 MHz scope that wouldn't have handled the
120 AC
> (300+V p-p) with a 1:1 probe, needed like a 10:1 or something
greater, or
> the inputs would have fried. I think my Fluke Combiscope will handle
it
> but I haven't had a need to check it.
> Â
> Do you feel like you have transient spikes on your line or
something?
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Received on Sun Sep 16 21:34:44 2012
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