Historical information

This object is believed to be associated with training at the Parkville Secondary Teaching College during the 20th Century.

Significance

Related to objects 450 and 452

Physical description

This rectangular wooden resistance decade box features four large dials for controlling resistances. The dials are mounted atop a black plastic panel, each with a square base. Three smaller dials are mounted to the right of the large dials.

Inscriptions & markings

Embossed plaque at front: 'J. L. WILLIAM / SCIENTIFIC INSTRUMENTS / SERIAL No 3960 / TYPE RB4DS / MELBOURNE / AUSTRALIA'
Engraved and filled white on top plate from left to right: 'ABSOLUTE OHMS AT 20 C / MANGANIN' Logo reading: 'J. L. WILLIAM / SCIENTIFIC / INSTRUMENTS / MELBOURNE / SERIAL No 3960' 'ZERO RESISTANCE / 0.004 OHM'
Engraved on back edge of top panel: 'SECONDARY TEACHER COLLEGE PARKVILLE'
Dials are labelled underneath with unit measurements for resistance settings, engraved and in-filled white.