This electronics video tutorial provides a basic introduction into the Class A, AB, B, and C transistor amplifiers. The class A amplifier is the common emitter amplifier which uses a single NPN transistor. The Class B amplifier using two complementary NPN and PNP transistors and yields a higher amplifier efficiency. The Class AB amplifier uses two diodes to eliminate the crossover distortion that's present in the Class B amplifier. The Class C amplifier is a tuned amplifier with a high efficiency but with extensive distortion.

Transistors NPN & PNP:
   • Transistors  NPN & PNP  Basic Intro...  

BJT Transistors Electronic Switches:
   • BJT Transistors  Electronics Switche...  

Night Activated LDR Sensor Circuit:
   • DIY Night Activated LDR Sensor Circui...  

Finding The DC Load Line & QPoint:
   • Transistor Base Bias Circuits  Findi...  

Voltage Divider Bias Circuit:
   • Voltage Divider Bias Circuit  

Collector Feedback Bias Circuit:
   • Collector Feedback Bias Circuit  

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Emitter Feedback Bias Circuit:
   • Emitter Feedback Bias Circuit  

Common Emitter Amplifier:
   • Bipolar Junction Transistors  Common...  

Common Collector & Base Amplifier:
   • Common Collector and Common Base Ampl...  

Darlington Pair & Beta Current Gain:
   • BJT Transistors  Darlington Pair & D...  

Voltage Gain of Transistor Amplifier:
   • How To Calculate The Voltage Gain of ...  

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Multistage Transistor Amplifier Circuit:
   • Multistage Transistor Audio Amplifier...  

Transistor Audio Mixer Circuit:
   • Transistor Audio Mixer Circuit  

Operational Amplifiers:
   • Operational Amplifiers  Inverting & ...  

Summing Amplifiers:
   • Summing Amplifiers  Op Amp Circuits  

LM386 Audio Amplifier:
   • LM386 Audio Amplifier Circuit With Ba...  

LC Oscillator Tank Circuit:
   • LC Oscillator Tank Circuit  

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