Single-Phase Rheostat, 300 x 56mm Meters_Electrical Nickel-plated T-pins provide secure specimen

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

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

Matte-white painted screen 100 x 100mm in size

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

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

Single-Phase Rheostat, 300 x 56mm Meters_Electrical Nickel-plated T-pins provide secure specimenThree 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.