>IF -- this is not always *necessary* -- we want to see if currents in a 2-wire
>feedline are unbalanced, I think a symmetrically placed ferrite core of
>appropriate diameter around >BOTH conductors, with a "secondary" winding
>feeding a sensitive meter or 'scope (etc) is the way to go.
>Also, we need to be aware that surplus thermocouple ammeter calibration may
>not be as good as our other and modern instruments; OT's know this -- and when
>to put up with >it.
Excellent points. identical toroidal coils as pickups, one on each
side and at the same location is an excellent way to go. they can
feed a dual trace scope and you can see both phase and amplitude.
Mike WZ5Q has integrated this approach in a home brew link tuner of
his.
73
Rob
K5UJ
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