Schematic Power Amplifier and Layout

FM transmitter circuit Radio Wireless circuit using BC547 FM transmitter circuit radiate strong radio frequency to the environment

LED Circuit Simple High Power LED Regulator Circuit using BD140 and BC549

Op-Amp Microphone Pream using NE5534 IC

Audio PCB circuit for Cellphone using TEA2025 Phone circuit and Audio circuit using TEA2025

Class B audio amplifier – 2500W using R 220 R 47k R 2k2 R 4k7 R 8k2 Tr C945, Tip 41, Tip 42, 2SC2922, 2SA1216 Audio amplifier – 2500W Layout – 2500W     schematic diagram