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"Q and I" detector, Edison and Swan

circa 1931

Deflectional electro-dynamometer, portable

1887-1900

Cardew's voltmeter, patent, no. 147 (Ediswan)

1890

E.H.T. Rectifier type 68508

1940-1957

1000 candle power 'Pointolite' electric Lamp

1883-1923

100 candle power 'Pointolite' electric Lamp

1923

Miner's Safety Electric Lamp, 1886

1886

Royal 'Ediswan' Christmas-tree lamp outfit

1935-1940

Fleming diode

1905

'Royal Ediswan' metal filament lamp

circa 1915

Electroconvulsive therapy machine

1940-1945

60 Watt 220 volt 'Royal Ediswan' gas filled electric Lamp

1883-1923

1000 Watt 220 volt 'Royal Ediswan' gas filled electric Lamp

1883-1923

Ediswan AT.50 triode valve, McVitie Weston valve collection, 1906-1957

1906-1957

Fleming Oscillation Valve

1905

Fleming Oscillation Valve

1905

Very early Edison and Swan 16CP carbon filament lamp

Edison and Swan 16cp carbon filament lamp

Two blowing irons, c. 1928

Two blowing irons, c. 1928

1928

Pointolite high intensity microscope lamp, by W. R. Prior and Co (Bishops Stortford, Herts), Santon Ltd and Edison Swan Electric Light Co., 155 Charing Cross Road, London, WC2, England, 1950-70.

Pointolite high intensity microscope lamp

1950-1970

transformer with bar through it. manufactured by Edison Swan United Electric Light Co, Manchester

Transformer with Bar

Original Fleming diode, 60 S16, (RMW/A1A - McVitie Weston number), by The Edison and Swan Electric Light Company Limited, c.1904, invented by Sir (John) Ambrose Fleming and used by Fleming in October 1904.

Fleming diode

1904