Browse Items (3472 total)

Set of 12 cardboard disks with central hole and slit from centre to edge. 2 of each colour: white, red, blue, green, yellow and black. Also smaller card disk with pictures on it and 8 rectangular apertures radiating from centre. Might be to show…

Two 8" "BASF FlexyDisk"s, (floppy disks). Very thin computer disks with visible magnetic sector in centre. Both disks hold 128 bytes. Also with instructions hand-written on paper, possibly for a programme on one of the disks.

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

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?

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.

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

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 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 glass bulb with 4 electrical pins Labelled with inscription

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.