3D Life History of Angiosperms Model, 24 x 18 x 2" Glassware_Glass Sets & Apparatus this decade resistance box substitutes

this decade resistance box substitutes for fixed resistors in circuit experiments

Three-speed manual transmission with reverse in a clear-plated case

Five-centimeter brass sphere mounted on an ebonite-insulated metal base

Used in fine-gauge thermocouple legs and resistance-coil winding

this silicon diode mounts on a transparent base with 4mm color-coded sockets and a printed circuit diagram for hands-on forward-bias demonstrations

3D Life History of Angiosperms Model, 24 x 18 x 2" Glassware_Glass Sets & Apparatus this decade resistance box substitutesMagnified angiosperm life cycle model traces pollination, fertilization, seed development, and germination through a complete hand painted sequence on a mounted base.