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

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).

Various Scientific Instruments Astatic galvanometer (dome not original) a Crooks gas discharge tube, a Wheatstone Bridge and a box of filament lamps

A W.G.Pye & Co Tangent Galvanometer, 21.5cm H

Deutsche Telegraphenstation von Siemens & Halske, um 1895Farbschreiber Nr. 31962, Federwerkantrieb (defekt), original zaponiertes Messing, auf Mahagonisockel mit Relais, Galvanometer, Blitzschutz und Morsetaste, Schublade mit Papierstreifen. Start Price: EUR 350 Zustand: (3/-)German Telegraph Station by Siemens & Halske, c. 1895Ink-writer no. 31962, with spring drive (defective), original lacquered brass, on mahogany base with relay, galvanometer, lightning protection, Morse key and drawer with paper strip. Start Price: EUR 350 Condition: (3/-)

A galvanometer by Preston of Sheffield on mahogany stand, early 20th century, and a mahogany cased dip circle

Telegraph works galvanometer

A large NCS amp gauge, a Siemens Bros & C., London galvanometer and an electric bell, etc.

A PHILIP HARRIS TANGENT GALVANOMETER, No 12881, in a wooden stand, and two other Philip Harris scientific instruments (3) (Condition Report: af, may be incomplete/with sd, generally appear ok)

Scientific instruments to include student's Wheatstone bridge galvanometer, etc.

Scientific instruments to include Crompton Parkinson galvanometer, Muirhead standard cells in boxes, various gauges.

1915 Robert W Paul galvanometer #1658 with military claw mark in brass & mahogany case - 23.5cm x 12cm x 10cm high

Lacquered brass and mahogany galvanometer by H. W. Sullivan

Sammlung technische Geräte und Meßgeräte, um 19101) Spannungsschalter, Becker, London, mit Drehknopf, außen beschriftet "Wheatstone Laboratory". - 2) Widerstandbrücke mit Rheostat und Induktionsspule, für Anschluß an Galvanometer oder Telephon, mit den Vergleichswiderständen 0,1, 1, 10, 100 und 1.000 Ohm, auf Mahagoni-Grundplatte. - 3) 2 Telegraphen-Relais, Hersteller: Telegraph Works und Siemens & Halske, original zaponiertes Messing. - 4) Voltmesser und Amperemesser, transportable Geräte in Mahagonigehäusen. - 5) Stöpsel-Widerstandbrücke, Becker, London, außen beschriftet "Wheatstone Laboratory". - 6) 2 Geräte zur Messung telegraphischer Signale, jeweils in Schachtel, - 7) 2 Spulen. - Und: 8) Morsetaster mit 2 Tasten, Robert W. Paul. London. Start Price: EUR 240 Zustand: (3/-)Collection of Technical Devices and Measuring Instruments, c. 19101) Voltage switch, Becker, London, with rotary knob, labeled "Wheatstone Laboratory". - 2) Resistance bridge with rheostat and induction coil, for connection to galvanometer or telephone, with comparator resistors 0.1, 1, 10, 100 and 1,000 ohms, on mahogany baseplate. - 3) 2 telegraph relays, made by Telegraph Works and Siemens & Halske, original lacquered brass. - 4) Voltmeter and ammeter, transportable devices in mahogany cases. - 5) Plug resistance bridge, Becker, London, labeled "Wheatstone Laboratory". - 6) 2 devices for measuring telegraphic signals, each in a box, - 7) 2 coils. - And: 8) Double-button Morse key, Robert W. Paul. London. Start Price: EUR 240 Condition: (3/-)

8 physikalische Geräte, um 19101) 4 Chromsäure-Elemente (galvanische Zellen) nach Poggendorff, mundgeblasene Glasflaschen mit jeweils zwei Zinkanoden und einer Graphitkathode, eine Flasche nicht komplett, Höhe bis 18 cm. - 2) Spiegelgalvanometer, Siemens Brothers, London, Faden gerissen, Höhe 42 cm. - 3) Ohmmeter, Demonstrationsmodell auf Stativ, mit verstellbarem Permanentmagneten, Höhe 38 cm. - 4) Infrarot-Lampe, Thermolite, 220 Volt, E27-Sockel, mit Reflektor auf Sockel. - Und: 5) Glasschale auf Stativ, für elektrostatische Versuche. Start Price: EUR 180 Zustand: (3-/-)8 Physical Demonstration Instruments, c. 19101) 4 single-fluid chromic acid cells according to Poggendorff, hand-blown long-necked glass bottles with one carbon and two zinc plates each, one bottle incomplete, height up to 7 in. - 2) Mirror galvanometer, Siemens Brothers, London, thread torn, height 16 ½ in. - 3) Ohmmeter, demonstration model on stand, with adjustable permanent magnet, height 15 in. - 4) Infrared lamp, Thermolite, 220 volts, E27 base, with reflector on base. - And: 5) Glass dish on stand, for electrostatic experiments. Start Price: EUR 180 Condition: (3-/-)

4 Spiegelgalvanometer, um 19201) Thomson-Spiegelgalvanometer, Maison Bréguet, Paris, mit Rundlibelle in Glaszylinder, Präzisionsinstrument zum Empfang von sehr schwachen Signalen, Höhe 33 cm. - Und: 2) 3 Galvanometer, Hersteller: Harvey & Peak, London, und Siemens & Halske, Berlin, und 1 unbezeichnetes Gerät, ein Faden gerissen, Höhe zwischen 29 und 38 cm. Start Price: EUR 240 Zustand: (3/-)4 Mirror Galvanometers, c. 19201) Thomson mirror galvanometer, Maison Bréguet, Paris, with bubble level in glass cylinder, precision instrument for receiving very weak signals, height 13 in. - And: 2) Three galvanometers, Harvey & Peak, London, Siemens & Halske, Berlin, and an unmarked instrument, one thread broken, height 11 2/5 to 15 in. Start Price: EUR 240 Condition: (3/-)

Galvanometer / Rheometer / Amperemeter, Strommessgerät, unter Glaskuppel, Gr. ca. H: 27cm, Dm: 19 cm.

A 20thC Elliott Bros of London galvanometer, mahogany cased, the silvered dial with brass ring, in wooden case, with three turning dials, 13cm high, 9cm wide.

Collection of assorted Photographic items inc. Exa Camera, Lenses and a H W Sullivan Galvanometer

Acht antike Messinstrumente1 x Nachtwächteruhr, 1 interess. Junghans-Sportstopuhr (Zehntelsek.-Anzeige), 1 Straßenlaternen-Impulsgeberuhr, 2 Zenit Stoppuhren (1 defekt), Seriennummer 1048020, viktorianisches Galvanometer, Kienzle Armaturenuhr. Z3.

A NATIONAL HIGH FREQUENCY RECEIVER, type HRO 5T, National Company Inc. Malden, Mass, USA, all dials moving with two windows to the bottom, one with a liner graph, the second unwritten chart but with sticker attached, cable attached, untested, dial window clear, also included is a cased Azimuth compass, not numbered and with additional parts but unknow if makes complete, photocopy of a book page with a description included, some losses to the coating, only stamped T to the base, together with base to a Galvanometer, numbered 11663, 50, 500, 2, worn condition, missing center dial, some reprinted instructions for wireless sets no 18, and five frequency cartridges, unkown compatible unit, inside a fitted wooden storage, Customers must satisfy themselves prior to sale in regards to conditions and authenticity, viewing is advised, condition reports are available on request

BRITISH ARMY BLASTING GALVANOMETER 1942 THE INSTRUMENT IS DESCRIBED AS A ‘DETECTOR Q&IATP’ WITH A STORES CODE OF ‘WA0275’. THE INSTRUMENT WAS MANUFACTURED BY W.E.M. CO LTD. WEMCO WAS THE TRADING NAME OF ‘WALTERS ELECTRICAL MANUFACTURING COMPANY WHO HAD FACTORIES AT KENSALTOWN WORKS IN THE KENSAL ROAD, LONDON AND IN WHIPPENDELL ELECTRIC WORKS, WHIPPENDELL ROAD, WATFORD. THE REAR OF THE INSTRUMENT HAS A PRINTED PLASTIC PLATE GIVING INSTRUCTIONS ON ITS USE, AND SAFETY WARNINGS

An early 20th century mahogany GPO Galvanometer, height 12cm

FIVE PRESSURE GAUGE INSTRUMENTS, comprising a 1951 fixed frequency vibration galvanometer No.85761, a self-contained Wheatstone Bridge with an Ever-Ready Co.'s No.887 pocket battery, an electric shock machine, an industrial pressure gauge and a wooden cased PCL pressure gauge (5) (s.d)

An early 20th century mahogany GPO galvanometer, brass carrying ring, 12cm high, stamped and labelled 1328, c.1920

J. Carpentier Paris galvanometer in walnut and glass case, 27 cm high

Philip Harris Birmingham serial number 7954 cylindrical brass galvanometer, 23 cm high