Electric Tuning Fork Lab Equipment and Supplies_Lab Equipment this metal-framed bench demonstration board

this metal-framed bench demonstration board uses variable resistors and switchable inputs to show how a meter measures V

Sequential mitosis stages — prophase

Polished beech wood test tube rack with twelve vertical holes sized for tubes up to 28 mm diameter

Discontinued bench instrument with continuously variable 0-30V DC at 2A plus stepped 1-6V AC in 1V increments

25-inch aluminum tuning fork features a round stem that grips firmly without damping the vibration

Electric Tuning Fork Lab Equipment and Supplies_Lab Equipment this metal-framed bench demonstration boardCast metal base mounts a heavy duty electromagnet driven fork at ~80Hz, with a captive thumbscrew on one prong for Melde's standing wave experiment and binding posts accepting 2 6V DC.