Single Pulley with 1 Hook, Aluminum Frame, 3.5 x 2" LabLearner verifying the Boolean disjunction operation

verifying the Boolean disjunction operation by direct observation

High-tension power supply driving spectrum and discharge tubes in atomic spectra and gas discharge demonstrations for advanced physics classrooms

paired with two 50N spring balances and two wrest pins so students can verify the laws governing frequency

the largest value in the demonstrator line for slow RC charging and high-energy capacitor-discharge work

Black 3-inch circular disc 0

Single Pulley with 1 Hook, Aluminum Frame, 3.5 x 2" LabLearner verifying the Boolean disjunction operationAluminum bodied single pulley in a 3. 5 by 2 inch metal frame with a centered 2 inch wheel and one hook, sized to suspend from a stand for mechanical advantage experiments.