All the electronic circuits and schematics on this site are arranged on one page so that it becomes easy to locate the circuit that you are looking for.
Alarms and Indicator Circuit diagrams :
- Power supply failure alarm
- Theft preventer alarm
- Rain Alarm
- A simple electronic buzzer
- Water Level Indicator with alarm
- Melody generator for greeting cards
- 4 in 1 burglar alarm
- Brakelight Flasher
- Car anti theft wireless alarm.
- Fire Alarm
- Daylight Alarm
- Factory Siren
- Police Siren
- Big Ben Sound
- Beeper
- Infra-red (IR) beam alarm/ proximity detector
- Timed Burglar Alarm
Audio electronic circuits list :
- Stereo Channel Selector
- Low cost intercom using transistors
- Infrared Head Phones
- Use the CD-ROM drive as a audio CD player without the computer
- Audio Visual Indicator for Telephones
- Ultrasonic pest repellent
- Sound Controlled Flip Flop
- Ultrasonic Switch
- Digital Volume Control
- 5 band graphic equalizer using a single IC/chip
- Audio Light Modulator
- Bass-treble tone control circuit
- Audio level meter (vumeter)
Circuits for Cars/Motorcycles :
Computer/PC Hardware Circuits :
Design Ideas :
Signal/Sequence/Misc. Generators :
Home/Garden related Circuits :
Music related Circuits :
Oscillator Circuits :
Robotics related Circuits :
Telephone Circuit diagrams :
- Telephone Ringer using 556 dual timers
- Two line intercom plus a telephone changeover switch
- Telephone line based audio muting and light on circuit
- Having secrecy in parallel telephones
- Telephone call meter using calculator & COB
- Phone Broadcaster
- Conversation Recorder
- Multipurpose Circuit for telephone
- Remote control using telephone
- Cordless phone backup
- Telephone Number Display
- Smart Phone light
- Telephone Headgear
- Telephone Line Vigilant
- Audio Visual Ringer
- Off line Telephone tester
- The Link Telephone Intercom ? Every Home Should Have One!
Test & Measurement Circuits :
Video Circuits :
- NONE YET 🙁
