Demonstration Apparatus with 2 Induction Coils, c. 1910

French Experiment Box for Demonstrating Electricity, c. 1910 Electricité, with 2 chromic acid cell batteries, induction coil, 2 Geissler tubes, magneto-electro motor with mount for tubes, 2 lamps

Large Induction Coil According to Ruhmkorff, c. 1910 Manufactured by Siemens & Halske. For spark length up to 6 in., with commutator, length of the coil 15 2/5 in., overall size 30 x 10 5/8 x 16 ½ in

'Large Induction Coil by Siemens & Halske, c. 1910 For "Gesellschaft für drahtlose Telegraphie", type RF ms2, 17 ¾ x 9 7/8 x 11 2/5 in. 'Großer Funkeninduktor von Siemens & Halske, um 1910 Für "Ge

4 Physical Demonstration Tubes, c. 1910 1) Crookes tube, for demonstrating a magnetic altering the direction of radiant matter, length 13 1/3 in. – 2) Tubular magnet coil, height 10 1/5 in. – And:

4 Physical Demonstration Models, c. 1910 1) Reflection and refraction apparatus by "Max Kohl, Chemnitz". – 2) Filament lamp on wooden stand. – 3) Voltmeter by "Radiguet à Paris", brass. – And:

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

Large Induction Coil with Mercury Interrupter, c. 1910 Coil length 19 5/8 in., spark length up to 9 7/8 in., on wood base, size 32 1/3 x 14 1/5 in. An impressive exhibition item! Großer Funkenindukto

Large 16-Inch Induction Coil According to Ruhmkorff, c. 1910 No. 997, manufacturer: "Watson & Sons (Electro-Medical) Ltd.", London, for spark lengths up to 16 in., overall size 34 x 13 1/3 x 18 ¼ in.

2 Physical Demonstration Models, c. 1910 1) Crookes' radiant matter tube, height 16 ½ in. – And: 2) Winkelmann-type vacuum double bulb, 1 glass tip broken, height 15 ¾ in. 2 physikalische Demonstr

2 Electrostatic Induction Demonstration Models, c. 1900 Glass balls with hanging gold strips, conductors on the top, height 7 ½ and 9 7/8 in. 2 Demonstrationsmodelle "Influenz-Elektrizität", um 1900

Wall Telephone by L.M. Ericsson, c. 1910 Stockholm, 3-part induction coil, double bell, lightning protection, walnut case, writing desk, tin battery cover. Wandtelephon von L.M. Ericsson, um 1910 Stoc

Telephone Switchboard, c. 1910 With plugs and flaps, five-part induction coil, crank, handset with speaking horn, and mahogany case, height 22 ½ in. Telephonzentrale, um 1910 Mit Stöpseln und Kl

6 Physical Demonstration Models, c. 1910 1) 2 Leyden jars, height 15 and 20 ½ in. – 2) Discharger, with 2 ebonite handles and hinge. – And: 3) 3 conductors on glass pillars, one by Robert Droste

2 Physical Demonstration Models with 9 Geissler Tubes, c. 1910 1) Stand with turning star and 3 tubes with uranium spirals. – And: 2) Isolated stand with 6 tubes of different shape and color, 2 of t

2 Dynamo-Electric Machines, c. 1910 Physical demonstration models, 1 by Masquellier, Anvers, handcrank-driven, cast-iron wheels, on wooden boards, heights 12 ½ in. and 16 ½ in. 2 dynamoelektrische M

Union Glass Co - Somerville, MA - Kew Blas Pulled Coil Miniature Vase c1910. Signed. Perfect condition. 4"d x 2.75"h. Spend $5000 or more at this auction and all of your SHIPPING IS FREE within the lo

2 Early Electric Motors, c. 1910 Unmarked, large coils, belt pulleys, on wooden bases, heights 9 ½ in. and 7 in. 2 frühe Elektromotoren, um 1910 Jeweils unbezeichnet, große Spulen, Riemenscheiben,

Slaby-Arco System Radiotelegraph Transmitter, c. 1900 AEG, Berlin. No. 30, consisting of 2 Leyden bottles, setting coil, induction coil and Morse key, on walnut base with surface capacitor in the lowe

Wall Telephones and Telephone Parts, c. 1900 1) Wall telephone by J. Berliner, Hanover, no. 23, with induction coil, no earphone. - 2) Belgian wall telephone, handset with horn, marked "Compagnie des

French Experimental "Electricity" Kit, c. 1900 Coffret Electricité, consisting of 2 chromic acid elements, 2 vials for chromic acid, a Rühmkorff induction coil, an electric motor, 2 Geissler

Antique electromagnetic parts pieces and apparatus. Includes: Inductorium pre 1903, Chicago Apparatus Co. Reymond Type Inductorium that regulate current, C.H. Stoelting Transformer with 2 coils mounte

Electrophysical Demonstration Model, c. 1890 France, marked "HRFA", mahogany, thick-walled glass container (fixed to the base), 6 electric connections, 2 coils, 2 electrodes inside of the glass, one s

3 American Steam-Engine Demonstration Models, c. 1910 1) Cast-iron model of a railroad locomotive engine, reversible, with Stephenson steering, hand-cranked, width 18 ¼ in. - 2) Steam motor, cas

Ampère Table, c. 1910 Physical demonstration model, used for experiments on the relationship between magnetic fields and electric currents, originally with mercury filling, with 2 plaques: "Instrumen