Single Pulley with 2 Hooks, Heavy Duty Frame, 4.25 x 2" Manufacturer_Austerlitz Plug-type resistance box covering 1

Plug-type resistance box covering 1 ohm to 5000 ohms with 11

and C' 512Hz - a major-chord array struck with the included hammer to amplify intervals and harmony

supplying a contrasting reactive-metal electrode pair for Faraday's-laws and ionic-conduction work

EDM-80 moving-coil DC voltmeter with a clear acrylic front

sized for hands-on Ohm's-law measurement and series-parallel comparison without rewiring between values

Single Pulley with 2 Hooks, Heavy Duty Frame, 4.25 x 2" Manufacturer_Austerlitz Plug-type resistance box covering 1Aluminum bodied single pulley in a heavy duty 4. 25 inch metal frame with hooks at both ends and a centered 2 inch wheel, configurable as fixed or movable in compound setups.