Brown insulator board composed of 20 brass plates; each row numbered 1-10 in descending order; each plate is associated with a corresponding hold for brass pegs and a coil of resistant wire below the board, which are either bare metal or bright green; two removable brass pegs with brown insulator head; two brass knobs located at the top corners of the insulator board;. resistance coils encased in a plexiglass case.
Accession Number: 2009.uc.6
Alternative Name:
Primary Materials: Metal, Wood, Plexiglass
The topmost brass plate stamped “108 J.S. Plaskett”; one green coil has “DK” written on its bottom; the plexiglass case used to be labeled with a sticker that said “20” on the side.
Dimensions (cm): Height = 12, Width = 12.5, Length = 15
Used for producing desired electrical resistances in electrical experiments.
Condition:
2009.uc.4: http://r1.chass.utoronto.ca/utmusi/display.php?instrument_id=427
J.S. Plaskett, Mechanician, Department of Physics
Date of Manufacture: 1890-1903
Provenance:
Additional Information and References:
Historical Notes: J. S. Plaskett