


Lead transformer

Transformer, by D'Arsonval, French, 1890-1920
1890-1920

Transformer, resistance springs
1890-1900

Transformer for use with an electric bell
1930-1959

Mahogany wall board with brass light fitment and switch
1890-1910

Transformer for use with optical instruments
1925-1955
Single and double link transformer
"Roentgen IV" transformer
1950-1951
Portable cautery transformer
1920-1930
Power adapter / transformer, for RoboThespian 3 robot actor
2016
Transformer, made by County of London Electrical Supply Co.
1920-1940
Reynolds' cineradiography apparatus
1935
Transformer, metal, on metal trolley
1901-1930