Single-Phase Rheostat, 300 x 56mm Meters_Electrical covering core dispersion and refraction

covering core dispersion and refraction shapes for ray-box optics work

this 40-piece optical bench kit pairs an aluminum track and sliding holders with lamp

this decade box selects cascaded values for RC-time-constant

Matte-white painted screen 100 x 100mm in size

this 28 SWG bare constantan wire on a 125g reel holds resistance stable as the surrounding circuit heats up

Single-Phase Rheostat, 300 x 56mm Meters_Electrical covering core dispersion and refractionThree hundred thirty ohm 0. 95A single phase rheostat on a 300x56mm tube with cover protected constantan winding and 4mm safety socket terminals, at plus or minus 10% nominal value tolerance.