Browse Items (3473 total)

Brass extending telescope with holder, no stand. Manufacturers name engraved on side but underneath the holder.

glass hydrometer, scale1800-2000, lead weighted bottom bulb. In red cardboard box

tall cylindrical glass laboratory jar with rimmed top and base. Dried orange rubber around rim

six ivory balls, one wooden ball, some have a green cord attached for suspension. One of the larger ivory balls has a flush weight attached by a screw inserted into the ball. Possibly some variation of Newton's conservation of momentum experiment

Metal eyepiece with engraving on it. Part of something else (?) Has screw holes in base.

Double track resistance box with varnished wooden box, 12plugs introducing 1, 2, 3, 4, 10, 20, 30, 40, 100, 200, 300, 400 ohms. Side PS BT Units, no. 2590 "Right at 15.5 C".

Tall paper covered wooden screen on top of a wooden base with groove for optical bench and 2 metal pointers on base. 3 cut sheets of paper (backs of old forms) have been used and slotted in to the built in grooves.

Farnell NOR modules in ABDNP:201911a

Piece of very thick fibre optic cable. No sheathing, not very flexible.

a glass tube bent into a V shape mounted upright into a rectangular wooden base. The base has four flattened ball feet