Physics Demonstration Loudspeaker Subcategory_Erlenmeyer Flasks Five-pulley set of tandem low-friction

Five-pulley set of tandem low-friction plastic pulleys at 25

Heavy-duty die-cast alloy boss head with a painted gray finish and two adjustable thumbscrews

finely controllable flame for chemistry heating

sized for solenoid and transformer windings that need many turns in a compact space

Five-pulley set of double-parallel 50mm plastic pulleys on open-sided steel frames

Physics Demonstration Loudspeaker Subcategory_Erlenmeyer Flasks Five-pulley set of tandem low-frictionMoving coil 4 ohm driver in a frame that orients vertically or horizontally, with 4mm sockets that connect directly to signal generators and other audio sources for sound wave demonstrations.