how to Upgrade Power Amplifiers?

31:15
How to make Ultra Bass Powerful Amplifier 1000W with 10 Transistor and U741, DIY Ultra Bass

52:05
57 - Designing a Simple Transistor Amplifier

22:54
How to upgrade the amplifier?

26:17
#772 Basics: Switching Power Supplies (part 1 of 2)

19:11
DIY High Power Amplifier Very Simple Using 20 Transistors 2SC5200 & 2SA1943 with TL072 IC

18:18
Electronics components Testing Part 1

10:53
Amplificador De Audio con c5198 y A1941 a 32-0-32v DC

15:01