Electronic Door Lock Security Key

54 years ago

This is the circuit diagram electronic door lock security key system. It means that this security system circuit is the…

Tone Booster

54 years ago

Below circuit is the tone booster circuit. According to the name of circuit, the purpose is to amplify the sound…

Basic Monostable Multivibrator based IC timer 555

54 years ago

The following diagram is the circuit diagram of basic monostable multivibrator based IC timer 555. This circuit uses only 4…

Electronic Candle Circuit using TTL IC

54 years ago

This is a simple and easy built electronic candle circuit which build using TTL (transistor-transistor logic) that are 74LS164, 74LS86…

Stepper Motor Controller Using TDA2030

54 years ago

There are many version of stepper motor type, also the many version of stepper motor controller design. This circuit is…

Angry Beard III Electric Guitar Effect

54 years ago

Here the circuit diagram of Angry Beard III Effect for Electric Guitar. Build your own guitar effect because the guitar…

LED Flasher 2-Transistors

54 years ago

The following is LED Flasher circuit which use 2 transistors for LED switching. The circuit works similar to flip-flop operation.…

Electronic Appliance Protector

54 years ago

This is a easy built and very low-cost circuit purposed to protect your electronic appliances / devices, such as Personal…

Uninterruptible Power Supply with PIC17C43 Microcontroller

54 years ago

This is a MicroChip Uninterruptible Power Supply (UPS) reference design with PIC17C43 microcontroller. The document is available to download from…

2W RF Amplifier with MOSFET LF2810A

54 years ago

This is a 2W RF amplifier circuit build with single power MOSFET LF2810A. Figure A Figure A is the schematic…