ECET 2026 ECE ECET 2026 ECE LearnNewThings November 27, 2025 0 Comments Power Amplifiers in Electronics – Classification, Efficiency, and ECET 2026 Key Concepts Concept Notes (Deep Explanation + Examples) A Power Amplifier (PA) is one of the most vital blocks in any communication system, audio amplifier, or RF transmitter.Its main purpose is...