Linear scale ohmmeter


Posted on Aug 3, 2012

One preset resistor is used for all the ranges, simplifying the setting up. Diode clamping is included to prevent damage to the meter if the unknown resistor is higher than the range selected


Linear scale ohmmeter
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When the meter has been assembled, a 10 K precision resistor is placed in the test position, R*; the meter is set to the 10 K range and RVl is adjusted for full scale deflection.




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