NPN Transistor Unit Item Type_Mug this two-coil demonstration transformer lets

this two-coil demonstration transformer lets students swap primary and secondary windings to watch step-up and step-down voltage shifts firsthand

and brush needed to outfit a chemistry or biology bench from scratch

and a candle holder

letting students route current down either branch of a circuit by choosing which slot the plug occupies

designed to slot onto the demountable U-core and combine with other coil ratios for electromagnetic induction demonstrations

NPN Transistor Unit Item Type_Mug this two-coil demonstration transformer letsNPN transistor in a protective enclosure with labeled base, collector, and emitter terminals, supplying a robust hands on component for amplifier, switching, and logic circuit demonstrations.