Browse Items (3472 total)

2 open circuit boards with components, soldered into place. One has a 4 digit display.

glass mercury thermometer, scale -10 to 50deg C, faint inscription on the rear of the tube. In a cardboard box with other items

A medium sized electronic valve with stout cylindrical glass casing, metal base and 4 pins. Part of a massive collection of valves in a cardboard box.

6 large clear plastic rulers with scales on them. 2 have straight edges all round the others have one inclined edge. Manufactures name on base.

Wooden frame holding a piece of paper. Paper marked with burnt patches; possibly used to show illumination of a candle. Has wire handle, possibly broken off of something.

One of two Ross projection lenses. Consist of 2 lenses; objective and eyepiece, in metal, casing.

a circular wooden lead weighted base with turned wooden leg terminating in an apparatus plate. The stand is telescopic with adjustment by a wooden screw

Large fabric backed poster of the graphs for y=cos x and y= sin x with wooden batons. Rolled up. Appears to be hand drawn.

Large paper poster, on wooden baton, of the Cooke Research Microscope, detailing the workings and light paths in it.

Painted wooden box with metal tools inside including tweezers, cross headed screw driver, 2 handles, Allan key and 2 flat screw drivers.