Test Your EQ (Engineering Quotient)

EQ #48

What is wrong with the name “programmable unijunction transistor?”

Unlike the original unijunction transistor—which really does have just a single junction—the programmable unijunction transistor (PUT), is actually a four-layer device that has three junctions, much like a silicon-controlled rectifier (SCR).

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EQ #48

by Circuit Cellar Staff time to read: <1 min