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

Inventory Number: 89342

67148-89342-1t 67148-89342-2t 89342-2t 89342-1t

Date: c. 1905

Maker Details: Signed by Ediswan.

Inscription: "FLEMING OSCILLATION VALVE / 12 VOLTS / EDISWAN" printed on exterior surface of bulb. "12 VOLT FLEMING OSCILLATION / VALVE / ex POLDHU HOTEL" typed on label stuck upon exterior surface of bulb.

Size: 120 mm in overall height

Materials: Mahogany?, glass, ebonite, metal alloy, nickel, assorted metals.

Other Given Number(s): Christie's 191.


12 Volt Fleming Valve, in polished mahogany? gallows mounting. With ebonite panel and metal alloy terminal upon upper surface of gallows. With two metal alloy terminals upon upper surface of base. Bulb has vertically-mounted nickel anode and other metal components. Previously catalogued with other, similar 4 Volt Fleming Valve (Inv. Num. 67148).

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