Schematic Power Amplifier and Layout

Ultrasonic Equipment circuit using IC CA3140, NE555

Hi-Fi Headphone Amplifier Circuit The following page contains detail information on how to design a headphone amplifier circuit diagram which has low output impedance Hi-Fi Circuit using NE5534, OPA2604, MJE340, BD139, BD140, MJE350

3 way active crossover , 4 Way Crossover Schema 4 way active crossover, Audio Trebel, Audio Midel, Audio Sub wofer, Audio Midel Bas    

Infrared Temperature Sensors With Digital Output

Energy Management for portable charger schematic