SoldPhysical Demonstration Instruments for ElectricalPhysical Demonstration Instruments for Electrical Experiments 1) Self-induction test assembly based on Kaun, manufacturer "Max Kohl, Chemnitz", height 11 in., with hand-blown 14 V lamp, c. 1910. - 2)See Sold Price
Sold2 Large Physical Demonstration Instruments, c. 18802 Large Physical Demonstration Instruments, c. 1880 1) "Electrical Egg", for the demonstration of an electrical discharge between two electrodes in a near vacuum, original lacquered brass, height 25 iSee Sold Price
Sold3 Physical Demonstration Instruments3 Physical Demonstration Instruments 1) Leyden jar, 2 volt, height 10 1/5 in. - 2) Discharger after Ducretet, with glass pillars, height 14 1/5 in. - And: 3) "Electrical Egg" after Newton, vacuum, heiSee Sold Price
Sold5 Physical Demonstration Instruments, c. 19205 Physical Demonstration Instruments, c. 1920 1) "Mammoth" X-ray air-cooling tube with regeneration device, made by Cuthbert Andrews, England, length 20 in. - 2) Crookes cathode ray tube, for demonstrSee Sold Price
Sold5 Physical Demonstration Instruments, c. 19205 Physical Demonstration Instruments, c. 1920 1) Crookes tube, with aluminum anode in butterfly form, coated with a fluorescent material, with glass base, height 6 ¾ in. - 2) Crookes tube, with fluorSee Sold Price
Sold4 Physical Demonstration Instruments, c. 19154 Physical Demonstration Instruments, c. 1915 1) Coulomb's hemispheres with sphere on isolated tripod, manufactured by Max Kohl. – 2) Spark tube, type FX47C, height 11 ½ in. – 3) Pocket inductionSee Sold Price
Sold4 Large Physical Demonstration Instruments, c. 19204 Large Physical Demonstration Instruments, c. 1920 1) "Maltese Cross", cathode ray tube with aluminum cross inside the tube, designed to flip down, 12 ½ in. wide. - 2) Cathode ray tube according toSee Sold Price
Sold4 Physical Demonstration Instruments4 Physical Demonstration Instruments 1) Tesla generator, 6 in. primary coil, 2 in. secondary coil, with spark gap, pillar 33 ½ in. high. - 2) Wimshurst's electrostatic machine, 2 Leyden jars, 2 plastSee Sold Price
Sold5 Physical Demonstration Instruments, c. 1920 onwards5 Physical Demonstration Instruments, c. 1920 onwards 1) Geissler tube, with multicolored spiral and uran glass cup, length 12 ½ in. - 2) Crookes cathode ray tube, used to demonstrate the influence oSee Sold Price
Sold4 Large Physical Demonstration Instruments, c. 19204 Large Physical Demonstration Instruments, c. 1920 1) "Maltese Cross", cathode ray tube with aluminum cross inside the tube, designed to flip down, 12 ½ in. wide. - 2) Cathode ray tube according toSee Sold Price
Sold5 Physical Demonstration Instruments, c. 19205 Physical Demonstration Instruments, c. 1920 1) High-voltage transformer according to Elster and Geitel, made by Max Kohl, Chemnitz, Germany. On walnut base with 4 porcelain legs, 11 x 8 in. - 2) DisSee Sold Price
Sold5 Physical Demonstration Instruments, c. 19205 Physical Demonstration Instruments, c. 1920 1) Canal ray tube after Goldstein, made by by Rudolf Pressler, Cursdorf, Germany. Height 13 in. - 2) Vacuum bulb with Tesla vacuum, height 12 ¼ in. - 3)See Sold Price
Sold4 Large Physical Demonstration Instruments, c. 19204 Large Physical Demonstration Instruments, c. 1920 1) "Maltese Cross", cathode ray tube with aluminum cross inside the tube, designed to flip down, 11 ¾ in. wide. - 2) Cathode ray tube according toSee Sold Price
Sold6 Physical Demonstration Instruments, c. 19206 Physical Demonstration Instruments, c. 1920 1) Vacuum tube with cylindrical cathode, height 11 2/5 in. - 2) Canal ray tube according to Goldstein, length 12 ½ in. - 3) Geissler tube with glass bulbSee Sold Price
4 Physical Demonstration Instruments, c. 19154 Physical Demonstration Instruments, c. 1915 1) Coulomb's hemisphere with sphere on isolated tripod, manufactured by "Max Kohl". – 2) Spark tube, type FX47C, height 11 ½ in. – 3) Pocket inductiSee Sold Price
Sold2 Physical Demonstration Instruments, c. 19002 Physical Demonstration Instruments, c. 1900 1) Aluminum plate electrometer by A. Pichler's Wwe, Vienna. Brass, height 10 ½ in. - And: 2) Ohmmeter by Chauvin & Arnoix, Paris. No. 696, in wood cSee Sold Price
SoldLarge Spark Coil After RuhmkorffLarge Spark Coil After Ruhmkorff Physical demonstration instrument, unmarked, length of the coil 16 ¼ in., spark length approx. 4 ¾ in., 12 V, 2 A, with pole reverser, wooden base, overall size 22See Sold Price
SoldRuhmkorff-Pattern Spark Coil, c. 1920Ruhmkorff-Pattern Spark Coil, c. 1920 Physical demonstration instrument, unmarked, length of the coil 8 ¾ in., spark length approx. 6 in., with pole reverser, wooden base, overall size 13 x 7 x 8 �See Sold Price
SoldLarge Spark Coil According to RuhmkorffLarge Spark Coil According to Ruhmkorff Physical demonstration instrument, unmarked, length of the coil 16 1/4 in., with pole reverser, mahogany base, overall size 20 7/8 x 13 1/3 x 14 1/5 in. GroßerSee Sold Price
SoldDip Circle, c. 1910Dip Circle, c. 1910 Physical demonstration instrument, used to measure the angle between the horizon and the earth's magnetic field. Originally lacquered brass, steel needle, 13 1/3 in. high. InklinatSee Sold Price
SoldGroup of Scientific InstrumentsGroup of Scientific Instruments Physical demonstration models and others: 5 various Crookes cathode ray tubes, 1 x-ray tube (defective), 15 glass valves, 4 stands, 3 Leyden jars, 2 glass tubes with meSee Sold Price
Sold4 Physical Demonstration Models4 Physical Demonstration Models 1) "Electrical egg", according to Newton, brass and cast metal, height 20 in., c. 1880, small crack in the glass. – 2) Pole changer by "W.J. Hauck, Wien", c. 1910. ��See Sold Price
SoldVarious Scientific InstrumentsVarious Scientific Instruments Physical demonstration models and other: Commutator according to Ruhmkorff - electric stimulation device with battery in wooden box - scoop (wood and brass) - handlamp fSee Sold Price
SoldGroup of Sale Catalogs of Physical Instruments andGroup of Sale Catalogs of Physical Instruments and Demonstration Models, 1891 and later In French. 1) "Max Kohl AG – Chemnitz", Catalogue No. 100, Tomes I et II, Tome III et Supplément du CatalogueSee Sold Price
Bins of Electrical Parts/Switches/Alligator ClipsJM Hobby Supply and Railroad Artifact Auctions4.4(127)See Sold PriceFeb 25, 2024
Mixed media on paper Le Corbusier after French Expressionist musicians playing instruments paintingVintage Art Finder Gallery4.2(4)See Sold PriceApr 07, 2024
Vintage Dali Bronze Cello Statue Figure Figurine Italian Musician InstrumentHouse of Treasure4.3(53)See Sold PriceFeb 29, 2024
German Childs Tea Set - Kittens Playing InstrumentsWoody Auction LLC4.9(2.5k)See Sold PriceMar 02, 2024
How To Make A Fiddle, A Practical Instructor and Guide in the Art of Constructing a Good Instrument.P.K. Gallery4.5(35)See Sold PriceFeb 25, 2024
The Violin: A Social History of the World's Most Versatile Instrument By David Schoenbaum 2013P.K. Gallery4.5(35)See Sold PriceFeb 25, 2024
Fine Oval Inlaid Aesthetic Center Table With Inlaid InstrumentsRalph Fontaine Heritage Auctions Inc.4.7(236)See Sold PriceFeb 25, 2024
Japanese Miniature Instruments, and Dolls.Turner Auctions + Appraisals4.3(313)See Sold PriceMar 09, 2024
Musical Instruments : a late 19thC German violin, bearing interior label 'Nach (Joseph GuarneriusClaydon Auctioneers Ltd4.3(125)See Sold PriceFeb 26, 2024
E.L. Farris Electrical Universal Appliances Neon ClockAbell Auction4.7(636)See Sold PriceFeb 29, 2024
Boxed Set of Scientific Instruments and Tools by J.F. LuhmeGray's Auctioneers4.5(187)See Sold PriceMar 06, 2024
TWO BRITISH BRASS SCIENTIFIC INSTRUMENTSPridham's Auctions & Appraisals4.7(223)See Sold PriceMar 02, 2024
Lot of Apothecary Jars & Scientific Instruments.Direct Auction Galleries 4.7(337)See Sold PriceFeb 24, 2024
VINTAGE TAI K.H.S. MUSICAL INSTRUMENT JUPITER SAXOPHONEAntique Arena Inc.4.5(878)See Sold PriceJun 15, 2024
