Browse Items (3473 total)

glass specific gravity hydrometer, scale 1200 to 1300. In cardboard tube

a cast iron circular base with a vertical hollow rod terminating with horizontal screwed thumbnut in brass. Telescopic stand

Plate on side: ' 0.3 AMPS / FOR USE WITH MODEL S66, N61793 '. With 2 terminals.

' No. L-387553 '. On top: ' ADJUST ZERO / UNIPIVOT / FREE CLAMP '; on right hand side:' 2.4 mV, 10 Ohms', on left hand side:' 120 mV / 500 Ohms'. With resistor bridge logo and 4 terminals. Non-linear scales in OHMS, mV, THERMAL.

Thick glass globe with filler hole; with brass base and screw knob for Watkins & Hill whirling table. To show parabolic shape of revolving liquid.

Bellows camera with rectiligne lens and perspective adjustment slides. With 7 holders for their plates .

Red painted wooden disk, part of whirling body demonstration using whirling stand (that we don't have). Small metal hook at top with attached string

Vernier calipers in box lined with blue velvet. Divisions 1', 1/5', 1/10' and vernier 0-50

Plate ctd. No 79.764 / STANDARD RESISTANCE / TYPE 1659 1 OHM / 3 AMPS / (ABSOLUTE). Standard resistor in cylindrical metal case.

Plate on side: ' 0.075 AMPS / FOR USE WITH MODEL S66, No. R10835.' With 2 terminals.