Thus the three basic bipolar transistor circuit configurations have equivalents with a FET; common-emitter becomes common-source, common-base becomes common-gate, and an emitter follower becomes a ...

The transistor can turn on or off if the base current turns on ... You may choose to solder or use common IC Experimenter boards. 2. Complete the circuit with the leads using each method listed ...

A slight surprise comes in how point contact transistors are used, unlike today’s devices their gain in common emitter mode was so poor that they took instead a common base configuration.