This electronics video tutorial provides a basic introduction into NPN and PNP transistors which are known as BJTs or Bipolar Junction Transistors. This video discusses the 3 operating regions of a transistor - the cutoff, active, and saturation region. It also explains how the transistors act as switches and how to determine the current and voltages in a transistor base bias circuit.

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 & Q-Point:
   • 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...  

Class A, AB, B, & C Amplifier Circuits:
   • Transistor Amplifiers - Class A, AB, ...  

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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