Instructions for use
Select an object to view from the list below. To rotate either click on the rotate icon located in the bottom right hand corner of the image or click and drag within the object window.
Telesonic Lorgnette
Submarine telegraph cable
Cookes portable double-needle telegraph
School telephone
Portable double-needle telegraph, 1850
Box telephone, c.1877
John Gaveys ring transformer
Valve heater transformer
Made by A & M Hearing Aids Ltd, this is a hand-held radio receiver and earphone intended for receiving signals from a low-powered transmitter. Similar examples were used experimentally at the Science Museum, London, in 1961 for providing personal audio commentaries in the Museums galleries.