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Emergency Quenched-Gap Transmitter Type 335, by Marconi Company, England, c. 1920
Inventory Number: 20374
Date: c. 1920
Maker Details: Made by Marconi's Wireless Telegraph Co. Ltd.
Inscription: "MARCONI CONDENSER TYPE 51 / P.S. No 767 N INST No 334773 / CAP .012 MFD VOLTS 6000 D.C." printed on exterior surface of condenser. "AMPERES / No371475 MARCONI PAT. APP. FOR" printed on interior face of ammeter.
Size: 260 x 240 x 220 mm (frame)
Materials: Teak, iron, copper, ebonite, nickel, glass, steel, assorted metals.
Other Given Number(s): Christie's 117, 922 (white tag), Science Museum Loan 1960-270 PT.
Notes:
Emergency Quenched-Gap Transmitter Type 335, with tuned circuit on ebonite and teak frame. With iron three disc discharger, copper coil, vertically-mounted condenser with ebonite surface, Marconi ammeter (scale 0-4amperes) and nickel-plated terminals. Missing cover with maker's plaque.
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