Browse Items (3473 total)

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

glass specific gravity hydrometer, black lead weighted, scale 1400 to 1600. In cardboard tube

a mercury normal thermometer 6 Deg C max, with upper metal end cap. Housed in cardboard tube

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

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

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

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

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

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

' 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.