On 2017-03-08, Winfield Hill wrote:
Cursitor Doom wrote...

Michael A. Terrell wrote:

Let's see you use it to find a stray 100 mA DC
on a crowded circuit board.

Oh come along now. You know it's not intended for
that sort of usage!

I ordered one from Newark, and plan to use it
on my messed-up switching power-supply designs.
Qualitative results will be fine.

a few years back there was talk of using a video head from a VCR
(after removing it from the drum) to probe AC currents. It should be good
to a few megahertz. a core from an ethernet transformer with a gap
added could be another option. a spool-shaped inductor would
probably work too.


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