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12 Volt Fleming Valve, by Ediswan, London, c. 1905

Inventory Number: 89981

89981-1t 89981-2t

Date: c. 1905

Maker Details: Made by Ediswan.

Inscription: None

Size: 115 mm in overall height (gallows frame)

Materials: Wood, baize, brass?, nickel, glass, ebonite.

Other Given Number(s): Christie's 190.


12 Volt Fleming Valve, held in varnished wooden 'gallows' mounting with base, underlined with red baize. With two brass? terminals upon upper surface base, and single brass terminal upon ebonite protruding base attached to upper surface of 'gallows'. Valve consists of bulb envelope, with internal nickel-plated vertically-mounted anode and filaments, and asbestos filled tip connecting filaments to valve base.

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