Electronic Circuit Diagram and Layout

Amplifier Auto Power ON Signal detecting auto power-on unit, audio signal controlled relay switch module, amplifier auto power on, audio sensing power switch, audio detector switch, audio signal detector circuit, line level audio detection circuit, audio triggered power switch part : BC547 , BC557, LM358, Relay

Simple Shunt Reg Circuit

70W Audio Amplifier Circuit using STK086

Electronics Schematic Diagram alarm Door Bell circuit using NE555 The main part of this doorbell circuit are two NE555 timer ICs.When some one presses switch S1 momentarily ,the loud speaker sounds a bell tone as long as the time period of the monostable multivibrator built around IC1. When the switch S1 pressed, IC1 is triggered […]

home alarm systems home alarm systems using CCTV Camera Auto Electronic Shutter Control Auto Switch CCTV Camera Auto Electronic Control Auto Switch circuit diagram CCTV switch circuits using 555, 74HC14, 4017, 2N2222 home alarm systems cameras installed at different locations in the city have been dismounted following the home and looking for CCTV camera and […]