Large Jointless Induction Coil According to Ruhmkorff, c. 1910L. Miller (Patent), England, 93 Hatton Garden, London. For spark length up to 10 in....

Early Electromagnetic Motor, c. 1860With 2 electric magnets, mahogany base, overall size 7 x 5 x 7 in., working, with 4,5 V DC.Zustand: (2-3/2+)Wa...

Electro-Magnetic Motor with Rotating Geissler Tube, c. 1890Physical demonstration model, two electro-magnets, on wood pillar, with wood and brass ...

Electro-Magnetic Motor with Rotating Geissler Tube, c. 1880Probably France. Magnetic machine with six-pole rotator and two electro-magnets, on woo...

2 Electric Motors, c. 19201) Zeiss Ikon Dresden. 200-230 V, 1/5 hp, for driving projectors. - And: 2) Unmarked, 1 belt-drive, suitable for driving...

1 Electric Motor and 2 Measuring Instruments, c. 19201) Small electric motor, 220/240 V, 1/90 hp, 2000 rpm, with belt drive. - 2) Siemens & Halske...

Large Induction Coil by Max Kohl, c. 1915Max Kohl, Chemnitz, Germany. Coil length 22 in., length of the spark gap approx. 9 ½ in., with Ruhmkorff'...

Very Large Induction Coil by Max Kohl, c. 1915Max Kohl, Chemnitz, Germany. Coil length 12 ¼ in., length of the spark gap approx. 6 in., with mercu...

Large Induction Coil According to Ruhmkorff, c. 1910Manufactured by AEG, Berlin. For spark length up to 10 in., overall size 34 x 10 5/8 x 18 ¼ in...

Large Induction Coil According to Ruhmkorff, c. 1910Manufactured by Siemens & Halske. For spark length up to 6 in., with commutator, length of the...

Large "Nivoc" Laboratory Induction Coil, c. 1930W. and J. George and Becker Limited, Birmingham and London. Coil length 13 in., length of the spar...

Large 16-Inch Induction Coil According to Ruhmkorff, c. 1910No. 997, manufacturer: "Watson & Sons (Electro-Medical) Ltd.", London, for spark lengt...

Electric Motor by Cloris-Baudet, c. 1880Stamped on the base "Baudet - 295". Consisting of a revolving armature with 3 electromagnets at the ends, ...

3 Induction Coils and 5 Leyden Jars1) 10 ½ in. induction coil by Griffin & George, Great Britain. With commutator and spark gap, on mahogany base,...

Group of Physical Demonstration Models1) Induction coil, c. 1960, made in GDR, length of the coil 15 ¾ in., 12 V, 2-3 ampere, for sparks up to 4 ¾...

Large High-Voltage Apparatus According to Tesla, c. 1920Demonstration model, used in physics for high-frequency and voltage alternating-current ex...

Radiaver by Saint-Gobain, 1937 onwardsPanel radiator with illuminated base, designed for the industrial exhibition EDF Electropolis by René Coulon...

Rotax Mercury-Jet Interrupter, c. 1920Electricitäts-Gesellschaft Sanitas, Berlin. No. 4765, 220 volts, 2.400 rpm, with rotating mercury container,...