Coil for Demountable Transformer, 70mm, 500 Turns, 0.5A Lab Supplies_Rulers & Measuring Supplies 8mm rod attachment and a

8mm rod attachment and a centered 50mm aperture together hold a lens square against an optical-bench rail for repeatable refraction

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

the four-sided geometry letting students explore deviation through non-equilateral cross-sections

Blocks chemical

Push-button engagement on a hand-cranked single-sided cone clutch

Coil for Demountable Transformer, 70mm, 500 Turns, 0.5A Lab Supplies_Rulers & Measuring Supplies 8mm rod attachment and aFive hundred turn 0. 5A bobbin coil for the demountable transformer, panel mounted with 4mm sockets and an enclosed earth pin for safe wiring during induction and AC ratio demos.