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A TELEGRAPH WORKS SILVERTOWN LONDON GALVANOMETER AND A PAPERWEIGHT SHOWING A CROSS SECTION OF BRITISH INSULATED CABLES

A GPO DIFFERENTIAL GALVANOMETER IN MAHOGANY STEEPLE CASE, along with a Griffin & Tatlock Ltd. mahogany cased ammeter (2)

A COLLECTION OF SCIENTIFIC EQUIPMENT, to include a Becker tangent galvanometer, a Pye example etc.

THE CAMRIDGE SCIENTIFIC INSTRUMENT CO LTD, GALVANOMETER, EARLY 20TH CENTURY stamped maker's marks and numbered 8051, lacquered brass and burnished body, with stained wood case 28cm high

GWR signalling department Galvanometer. Mahogany cased with a silvered dial engraved GREAT WESTERN RAILWAY COMPANY MAKERS READING. A lovely 19th century instrument in excellent condition with the needle moving freely. Stands 5in tall.

A GPO DIFFERENTIAL GALVANOMETER IN MAHOGANY STEEPLE CASE, along with a Griffin & Tatlock Ltd. mahogany cased ammeter (2)

A COLLECTION OF SCIENTIFIC EQUIPMENT, to include a Becker tangent galvanometer, a Pye example etc.

Tangent Galvanometer , Philip Harris, English, c.1920 engraved Philip Harris, galvanometer under a glass dome

A Good Lord Kelvin Multicellular Voltmeter, English, c.1910, engraved to the solvered plaque at the top 'Lord Kelvin's Patents, Multicellular Voltmeter No.1506, James White Glasgow', the galvanometer with a glass oil damper (empty) to the base, needle to a scale running 0-260, in a chased lacquered brass case mounted on a later wooden support, 42cm tall

A quantity of mathematical/scientific instruments to include Goodbrand & Co. yarn balance (a/f.), cased part drawing sets, cased (part of) string Galvanometer, etc.

A vintage 1960's Galvanometer in original brown posting box

WW1 Military Shells & Trench Art, to consist of Edison & Swan Galvanometer Q and I tester No 22293 date 1918, 2x 18 pound shell timers, 1916 18-pound shell, trench art, 45in HOWR pot and 1916 trench art ashtray (box)

Galvanometer. Measuring direct current. Tangents Bussole Galvanometer for school applications. In wooden design, according to Hahn, 36 cm high

Galvanometer. Measuring direct current. Tangents Bussole Galvanometer for school applications, according to Hahn, 35 cm high

Horizontal tangent laboratory galvanometer by Philip Harris & Co., Birmingham, wooden case with brass mounts

Harris Galvanometer, England, auf Holzsockel, H 23, Z 2

Harris Galvanometer, England, im Holzkästchen, L 12,5, Z 2

A collection of photographic glass plates, with hand-written titles identifying views of Calcutta, Kashmir and Wilson College; together with an a Thomson's Azimuth Mirror by Henry Hughes & Son; a small lacquered brass microscope; a J. Lancaster & Son mahogany and brass plate camera; an Absolute's Galvanometer by W.A. Hirschmann of Berlin etc. Condition Report:Available upon request

Scientific equipment, to include a barograph by Casella, London, a small boxed Eclipse microscope, a mahogany cased H, Tinsley Microfarad, an A. Gaiffe Milliamperes meter, a W.G. Pye & Co. galvanometer etc. Condition Report:No condition report available.

A military issue mirror Galvanometer No 1, Mk II, by H. W. Sullivan, London, cased

Baird & Tatlock Ltd Tangent Galvanometer. Glasgow & Manchester. Fitted within a glass dome.

Horizontal tangent laboratory galvanometer by Philip Harris & Co., Birmingham, black painted metal case with brass mounts, H20.5cm

Horizontal tangent laboratory galvanometer by Philip Harris & Co., Birmingham, wooden case with brass mounts

Quantity of laboratory equipment to include a galvanometer. Not available for in-house P&P

GALVANOMETER, ELLIOT BROS OF LONDON, EARLY 20TH CENTURY no. 1369, silvered dial and brass surround, in brown leather casecase 14cm wide

A detector Q.&I.A.T.P. dated 1942 galvanometer

240v isolation transformer and a WPA moving coil galvanometer. Not available for in-house P&P

A Tangent Galvanometer by Eureka Scientific Co. Ltd in a glass dome 21cm h on a wooden base 21cm d along with a Brass Compass by Nippon Kokaikeiki Co Ltd 20cm d and a Royal Standard Aneroid Barometer by Dolland London 14cm d. (3).

Mirror galvanometer demonstration. Shows the operation of a mirror galvanometer, 22 cm high

Vertical Galvanometer. Measuring direct current. Vertical galvanometer under glass dome, for measuring direct current, 12 cm wide

Galvanometer. Measuring current by means of different windings. Tangents Bussole with different windings and equipped with compass and vernier for current measurement, 46 cm high

School Moving Coil Galvanometer (Griffin). Measuring direct current. Designed so that the hood can be easily removed to look inside at coils and magnets, 20 cm high

Telegraph galvanometer. A galvanometer is used to measure the strength of the telephone line. If the telegraph line becomes too long, the line becomes too weak due to the resistance. To measure this, a galvanometer is used, 16 cm high

Milli-Amperemeter. Ammeter (current pressure) D.R.G.M. Milli-galvanometer with scale from 0 to 20 milli-Ampere, 14 cm wide

Galvanometer. Direct current measurement. Scaleless galvanometer to visualize the effect of phase shifting, 10 cm diameter

Balance Galvanometer. Measuring direct current. Balance or vertical galvanoscope for induction and thermoelectric experiments, 40 cm high

School galvanometer 1877 (multiplier). Measuring small currents. Galvanometer (multiplier after Nobili), with double magnetic needle, (Astatic needle pair), 24 cm high

Moving Coil Galvanometer. Measuring Voltage. Moving coil, galvanometer to Ayrton-Mather, 27 cm high

Hartmann & Braun A.G. galvanometer, 35 cm high

Reading lamp with measuring rod, for mirror galvanometer. Accessories for mirror galvanometer. Projector with light slit, which falls on the mirror of the galvanometer and can thus be read on the measuring rod, 27 cm high

Balance. Galvanometer measuring direct current. Large, tripod-mounted (direct current) electrometer with adjustable coil, 38 cm high

Vintage galvanometer by W G Pye & Co. of Cambridge, England

A Sikes hydrometer in box, Galvanometer in wood casing and a Venner time switch

A WWI military Silvertown Galvanometer No 4027 1918, used to detect Morse code, housed in a wooden box, together with two J. Rabone & Sons spirit levels both in wooden boxes.

Sammlung Meß- und Laborgeräte1) Großes Volt/Ampere-Meßgerät, Physikalische Werkstätten Göttingen, Demonstrationsmodell für den Physikunterricht, Höhe 35 cm. - 2) Wattmeter, Siemens & Halske, transportabel. - 3) Universalmeßinstrument, Italien, mit 4 Stöpselbrücken, 2 Drehschaltern und Meßgerät von Weston. - 4) 3 Stöpselbrücken, Hersteller Siemens & Halske, Hartmann & Braun und 1 x unbezeichnet. - 5) Stromgenerator, Siemens & Halske, mit zwei-lamelligem Induktor und Voltmeter. - 6) Hertzmeßgerät, (Frequenzmesser) Gossen, 110-500 Volt. - 7) Voltmeter, Gossen, 3-300 Volt. - 8) Frequenzmesser, Kanada und England, 100-135 Volt. - 9) Voltmeter, unbezeichnet, Taschenformat. - 10) 3 frühe Voltmeter, Frankreich, Messinggehäuse, Ø 6,5, 10 und 16 cm. - 11) Voltmeter, Bakelitgehäuse, 0-500 Volt. - 12) "Tong-Test", Ampere-Meßgerät, Columbia Electric Co., Ohio, mit 3 verschiedenen Aufsätzen für unterschiedliche Spannungen, in Koffer. - Und: 13) Galvanometer, England, 200 Ω, Eichengehäuse. Start Price: EUR 240 Zustand: (3+/-)Collection of Measuring and Laboratory Equipment1) Large volt/ampere meter, Physikalische Werkstätten Göttingen, demonstration model for physics lessons, height 13 ¾ in. - 2) Wattmeter, Siemens & Halske, portable. - 3) Universal measuring instrument, Italy, with 4 plug bridges, 2 rotary switches and measuring device by Weston. - 4) 3 plug bridges by Siemens & Halske, Hartmann & Braun, one more unmarked. - 5) Current generator, Siemens & Halske, with two-lamellar inductor and voltmeter. - 6) Hertz meter, (frequency meter) Gossen, 110-500 volts. - 7) Voltmeter, Gossen, 3-300 volts. - 8) Frequency meter, Canada and England, 100-135 volts. - 9) Voltmeter, unmarked, pocket size. - 10) 3 early voltmeters, France, brass cases, Ø 2 ½, 4 and 6 ¼ in. - 11) Voltmeter, bakelite case, 0-500 volts. - 12) "Tong-Test", ampere meter, Columbia Electric Co., Ohio, with 3 different attachments for different voltages, in case. - And: 13) Galvanometer, England, 200 Ω, oak case. Start Price: EUR 240 Condition: (3+/-)

Akustischer Telegraph Bright's Bell, 1855Entwickelt von Charles Bright, von der British and Irish Magnetic Telegraph Company zwischen 1855 und 1868 eingesetzter Telegraph, der akustisch empfängt und mit einem separaten Paar Klopfer mit unterschiedlichen Tönen arbeitet. Er benötigt nur einen einzigen Stromkreis und funktioniert mit dem "Europäischen Alphabet", einer deutschen Adaption des amerikanischen Codes. Diese Art von Telegraphen wurde bald durch den Morseapparat überflüssig. - Mit 2 Schallgebern, Galvanometer und Doppelrelais, in Mahagoniaufbau, Maße 38 x 25 x 34 cm. - Die früheste Form eines akustischen Telegraphen, welche in Großbritannien verwendet wurden. Start Price: EUR 1800 Zustand: (3+/-)Bright's Bell Acoustic Telegraph Sounder, 1855Invented by Charles Bright, with 2 sounders, galvanometer and double relays, in mahogany superstructure, 15 x 10 x 13 in. - Note: This type of device was used by the British and Irish Magnetic Telegraph Company between 1855 and 1868. Capable of receiving acoustically and using a separate pair of tappers with different sounds, the telegraph requires only a single wire circuit and works with the "European Alphabet", a German adaptation of the American Code. This type of telegraph was soon made obsolete by the Morse telegraph sounder. The earliest form of acoustic telegraph instrument used in Great Britain. Start Price: EUR 1800 Condition: (3+/-)

An instrument by Griffin and Tatlock, possibly a galvanometer, with scale from 0-250, on tripod base, height 57cm.Condition Report: - Please note that this lot is not suitable for our in-house postage service.We would recommend collecting this lot or contacting Mailboxes Etc for postage of this lot, their details can be found on https://www.adampartridge.co.uk/services/transport/

A leather cased Galvanometer No.24A MkI; and a Barker & Son compass in non-reflective case, with outer leather case (2)

Edison Galvanometer 

WW1 Edon & Swan Galvanometers: Leather cased galvanometer housed in wood with clean dial with maker to front , case stamped to top 1918 and one other dated 1918 to dial. 2 items

Nautical and military interest: Boxed Royal Navy torpedo rudder adjusting tool/gauge, bronze and brass; galvanometer dial; Air Ministry Type P6 compass in brass cover; brass clinometer marked Liverpool and Glasgow; HMS Ark Royal stamped brass tightening nut; 3x brass/bronze nautical fixtures. (8)

A W G Pye and Co tangent galvanometer and one other scientific instrument. The former 21 cm high.

A 1915 original cased Galvanometer.

A mahogany galvanometer, maker 'Philip Harris & Co, London', 24cm high.

A Reid Bros, London brass cased horizontal galvanometer, 4” dia, and a Gambrell Bros galvanometer/resistance box

A brass galvanometer, Telegraph Works Silvertown London, in fitted stained wood box inscribed Royce Ltd Manchester, dial 9cm diam, box 15cm w, a brass miner's dial, Hedley's, John Davis & Son (Derby) Ltd, c1900, 17.5cm diam and a carved and inlaid mahogany aneroid barometer, 43 x 34cm (3) Galvanometer box and dial both with numerous scuffs and scratches consistent with age and use.Miner's dial lacks glass, hands loose, shrinkage cracks.

A Pye of Cambridge tangent galvanometer, the blackened housing on three adjustable feet

An early 20th century mahogany framed Philip Harris & Co Targent Galvanometer, raised on adjusting brass feet, bearing makers plaque, 36cm high

An ammunition box, 10" x 7" high and a single coil vertical Galvanometer 'Silvertown, no. 7915, 1915', 5 1/2" high.

BAIRD & TATLOCK; a galvanometer, with glass dome on mahogany base, height 21cm (dome associated), with a larger galvanometer, a scientific glass chamber on mahogany base with label for A. Gallenkamp & Co Ltd London, and an electrometer (4).