Browse Items (3473 total)

Two parts from amplifiers, should have metal casing, with a gain, mute, range balance, etc. This one has had the casing removed. On rubber feet.

Large light bulb with modern shape and screw fitting. On brass fitting is inscription.

cardboard box of 6 metal adapters for the spekker absorptiometer. Also in box is an empty tin, with the words "made in Scotland, 2oz net" on the base.

One of 2 Oblong Mullard light bulbs, very fine filament wire in twisting pattern and 4 pins for power connection.

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

Oblong light bulb with very fine filament wire vertically stretched with screw fitting. Written on in hand inside the bulb is "6, 3051".

Cylindrical box with 3 rubber washers in it. Marked on box

Metal, bubble sextant in wooden box with carry handle. Still has power cable. Plate on box with inscription

a Post Office Telecommunications modem unit type 2TG2393 ser No.47284, case serial No. 18783 with Type 740 telephone; for transmission at 600 and 1200 baud;

In glass case with brown wood. Perfect order. Case key in side lock. Another brass key with square hole and thumbwheel for adjusting vernier. Scale 24 - 32. White label inside in holder 'Negretti & Zambra Opticians to her Majesty London'. No 1212