Microphone amplifier experiment. I then wired up a small computer loudspeaker (8Ω) as a microphone, and tried it on both circuits. ... The impedance of the 8Ω loudspeaker working into the low input ...

Jenny, I love this series, but paragraph 4 of the common emitter biasing discussion should say, “In an NPN transistor, the connection between base and emitter is a PN junction, so as you might ...

Forward biased base-collector junctions only happen [in common emitter circuits] when the transistor is saturated, and the voltage across emitter-collector is about 0.2V Report comment Reply ...