[Amps] Digital read out

[John E <johne@tds.net>]

Some time ago I came across a operator that was using Potentiometers 
with roller inductors and variable caps to indicate their position via a 
meter or digital read out.

Have looked the web over and can not find this info.

Any one know where it is ? or know what ohm  and turns work out ? or 
gear ratio ?


Thanks de John KØCQW
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