Browse Items (3473 total)

Large black metal optical bench, groove style with adjustable feet.

10-step variable capacitor for device mounting, type B-22-C. 10 by 0.1 microfarad. Ser.no. 384931. Black plastic faceplate

Large, slightly yellowed, glass ball on lead base with standard recording chart holder behind ball. Could be the recorder from the Cromwell Tower Observatory established in 1868.

A glass bulb with 4 electrical pins Labelled with inscription

A computer "MAINTENANCE PANEL" with 9 switches, 34 LED's and a display button. Supplied with Aberdeen University's computer mainframe, it was a control panel for "Honeywell Maintenance Personnel". Has rubber feet on the base and has 2 low voltage…

A large mains powered early calculator with 8 columns of plastic buttons with the numbers 1 to 9 on them. At one side of these there is a square key pad with numbers 0 to 9 and a -/+ sign switch. On the other side there are the function keys; +,-,…

A large electronic valve with glass casing, plastic base and 4 pins. Part of a massive collection of valves in a cardboard box.

4 rolls of "A1 tape" which has been treated with an anti-static solution. The tape is just paper. The roll has a central cardboard tube.

Small brass astronomical refracting telescope with 30 mm aperture objective and single draw-tube. Closed length 330 mm. Magnification about x6. May be a sighting telescope. 19th century?

One of three large disk shaped computer data storage cartridges. Push switch and lift using handle and it comes out of the protective casing. Label has model type and number