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Displaying 81 to 100 of 655 records

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Heading Date Maker Place Materials Inv Num
View Record Morse Key Early 20th Century Elliot Brothers (London) Ltd. London Teak, bakelite?, brass. 70589
View Record Variometer And Sliding Capacitor Early 20th Century Marconi's Wireless Telegraph Co. Ltd. London Teak, copper, ebonite, nickel, steel. 44318
View Record Remote-Control Switch Early 20th Century Unknown Unknown Teak, steel, cord, brass, copper. 97148
View Record Carborundum Detector Early 20th Century Unknown Unknown Ebonite, nickel. 90595
View Record Irwin Oscillograph Early 20th Century Robert W. Paul. London Iron?, brass, copper. 30624
View Record Discharger Early 20th Century Unknown Unknown Steel, brass, cast iron. 42997
View Record Induction Coil c. 1906 Marconi's Wireless Telegraph Co. Ltd. London Mahogany, wax, brass, ivory?, ebonite, celluloid. 12640
View Record 12 Volt Fleming Valve c. 1905 Ediswan. London Wood, baize, brass?, nickel, glass, ebonite. 89981
View Record Large Tuning Condenser c. 1906 Marconi's Wireless Telegraph Co. Ltd. London Brass, glass, ebonite, teak, assorted metals. 48642
View Record Lead-Acid Accumulator Early 20th Century Unknown Unknown Teak, leather?, brass. 62812
View Record Magnetic Detector Early 20th Century Marconi's Wireless Telegraph Co. Ltd. London Mahogany, glass, brass, ebonite, bakelite, iron. 18289
View Record Toothed Disc For Rotary Spark Discharger c. 1906 Unknown Unknown Brass 91762
View Record Rotary Spark Discharger c. 1906 Unknown Unknown Steel, brass, cast-iron, 64999
View Record Fleming Valve c. 1905 Ediswan. London Copper, glass, brass, assorted metals. 41677
View Record Tuning Condenser No 4 c. 1906 Marconi's Wireless Telegraph Co. Ltd. England Ebonite, brass, paper. 20696
View Record 'Marconi' Wavemeter Type No 2 c. 1906 Marconi's Wireless Telegraph Co. Ltd. London Teak, glass, steel, ebonite, leather, assorted metals. 52068
View Record 'Marconi' Wavemeter Instruction Leaflet c. 1906 Marconi's Wireless Telegraph Co. Ltd. London Paper. 98851
View Record Magnetic Detector Early 20th Century Marconi's Wireless Telegraph Co. Ltd. London Mahogany, brass, ebonite, bakelite, iron. 75969
View Record Induction Coil For Tuned Field Transmitter 1907 Marconi's Wireless Telegraph Co. Ltd. London Brass, mahogany, ebonite. 30667
View Record Cover For Multiple Tuner c. 1907 Marconi's Wireless Telegraph Co. Ltd. England Mahogany, brass, glass, paper. 13774

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