1. This test circuit provides the biasing conditions needed to evaluate a transistor’s hFE according to the manufacturer’s criteria. In this example, the device under test is a QSZ2 (2SB1695 ...

Like this transistor tester that was just asking to have Tetris programmed onto its tiny screen. The transistor tester is a GM328A made for various transistor testing applications, but is also an ...

We think that beginners will find [Ben’s] demonstration of how to calculates Hfe, which is the base current necessary to fully switch the transistor. If this is gibberish to you, have no fear.