Roller-Smith Bridge Ohmmeter

There is nothing digital about a vintage Roller-Smith bridge ohmmeter.  It can measure from 0.5 ohms to 50,000 ohms using 4 ranges.  This is a beautiful antique test instrument.  It has an attractive hardwood case, leather handle, and quality construction.  The meter operates on 3 vdc, which can be supplied using two D-cell batteries or […]

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