Browse Items (3473 total)

brass pole with two poles with balls on the end that can move out from the main pole

Medium sized Apps' induction coil on wooden base. Serial No. 583 .

Dark-coloured wooden handle with hollow yellow glass stem, brass end. Small threaded screw at end of brass to take attachment.

a mercury glass centigrade thermometer, scale -5 to 105 deg C. In cardboard tube

Small collection of original off-prints mentioned in "The Atlas computer in the 1960s and early 1970s: a personal reminiscence".

Coil 500 turns; attached paper label of more recent origin '. L 155 mH R 73.07 Ohms ' Wooden frame with brass handle and slots for engorging vertically or horizontally.

Wooden beam with two sliding lenses on it, assumed for use with part a of set. Set up as a telescope arrangement.

On wooden base. Brass terminals, iron core.

4 terminal standard resistance in blue-grey metal box with brown insulating top.

Sending key on mahogany base with small receiver switch and other integral wiring. Additional connection and capacitor in base put there when setting up telegraphic circuit in 1980s.