US$ 182.50
Comprehensive seven-piece acrylic blocks set at 25mm thickness
a battery-free source of partial vacuum for bell-jar demonstrations without external power
Germanium diode on a transparent base with 4mm color-coded sockets and a printed circuit diagram
110 ohms via rotary selector knobs
resistor networks
Hand Pump for Physics Demonstrations Subcategory_Wash Bottles Comprehensive seven-piece acrylic blocks setHand operated pressure pump supplying positive pressure for gas law, pressure vessel, and pneumatic demonstrations, a battery free source for physics classes exploring pressure behavior.
US$ 182.50
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