LOT 0421 Electro-Physical Instruments and Light Bulbs
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Electro-Physical Instruments and Light Bulbs 1) Induction coil according to Ruhmkorff, c. 1920, unmarked, wood case, for spark length up to 2 1/3 in. - 2) "Weston Normal Wattmeter", No. 919, The European Weston Electrical Instrument Co., 2/4 amp., mahogany case, ebonite plate, original lacquered brass fittings, c. 1900. - And: 3) 8 various mostly tipped incandescent light bulbs, mostly by European manufacturers, with carbon filaments, tungsten filaments and other metals, Edison and bayonet sockets, brass sockets with porcelain, 5 with brass switches, untested, early 20th century. Elektro-physikalische Instrumente und Leuchtmittel 1) Funkeninduktor nach Ruhmkorff, um 1920, unbezeichnet, Holzgehäuse, für Funkenlängen bis 6 cm. - 2) "Weston Normal Wattmeter", Nr. 919, The European Weston Electrical Instrument Co., 2/4 Amp., Mahagonigehäuse, Ebonitplatte, original zaponierte Messingarmaturen, um 1900. - Und: 3) 8 verschiedene Glühfadenlampen, zumeist Europa, mit Kohlefäden, Wolframdraht und weiteren Materialien, Edison- und Bajonett-Sockel, zumeist Glaskolben mit Spitzen, Messingsockel mit Porzellan, 5 davon mit Messingschaltern, ungetestet, frühes 20. Jahrhundert. Start Price: EUR 280
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