Uploaded June 2026 | Updated September 2026, 2 weeks ago

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This video discusses the importance, calculations and measurement of the input and output impedance of a common emitter amplifier, including the emitter bypass case. It may be helpful to view the following videos for additional background:
Emitter Follower tutorial:
youtu.be/8f-nhjQ1jMk
Tips & Tricks on Common Emitter Amplifiers:
youtu.be/VWY2WQcKJgk
Current Sources:
youtube.com/watch?v=xR0RfmmRhDw
Video Notes:
qsl.net/w2aew/youtube/InputZceAmp.pdf