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5 resistors mounted of a rectangular bakelite base board

5 resistors mounted of a rectangular bakelite base board

1935-1960

Six carborundum resistors

Six carborundum resistors

Resistor, wooden board

Resistor, wooden board

1901-1930

Four Banks of Dropper Resistors on Asbestos Framework

Four Banks of Dropper Resistors on Asbestos Framework

Cardboard box containing 17 wire-round resistors

Cardboard box containing 17 wire-round resistors

1918

Tesla coil, probably from electrotherapeutic machine, European, 1850-1910

Tesla coil

1850-1910

Inductor coil, cased, by E. Ducretet, Paris, French, 1870-1910

Inductor coil

1870-1910

Coil, European, 1850-1910

Coil, European

1850-1910

Resistor coil for a small motor, insulated copper wire wound round cylindrical metal core, with handle, mounted on wooden base, A. Gaiffe, Paris, maker, French, 1880-1920

Resistor coil for a small motor

1880-1920

Resistor for x-ray machine

Resistor for x-ray machine

Pair of HF generating coils, European, 1860-1910

Pair of HF generating coils, European, 1860-1910

1860-1910

Resistance coil, red brick base on 4 china feet surmounted by 2 square sectioned coils wound on wood frame

Resistance coil

Wooden box containing three resistors, for use with Fleming bridge

three resistors, for use with Fleming bridge

1880

Wooden box containing two resistors, the ratio arms for Fleming bridge

two resistors, the ratio arms for Fleming bridge

1880

Inductor coil, cased, by E. Ducretet, Paris, French, 1870-1910

Inductor Coil

1870-1910

Resistor for use with electrocardiograph machine, 1934

Resistor for use with electrocardiograph machine

1934