Single-Phase Rheostat, 300 x 56mm Meters_Electrical this 40-piece optical bench kit

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

Primary and secondary copper coils with a sliding iron core and 4mm terminals

Mid-decade capacitance box stepping 1nF to 10nF in 1nF increments at plus-or-minus 5% on 63V

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

Nickel-plated T-pins provide secure specimen pinning with broad heads for stable dissection board mounting in biology laboratories

Single-Phase Rheostat, 300 x 56mm Meters_Electrical this 40-piece optical bench kitThree 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.