Adjustable Sine/Square Wave Oscillator

The following scheme diagram is the circuit diagram of simple easily tuned / adjustable sine and square wave oscillator. With…

55 years ago

20W Power Tube Amplifier with EL34

The following diagram is the circuit diagram of 20W power amplifier which build based tube component EL34. EL34 is very…

55 years ago

NiCAD Battery Charger with Current and Voltage Limiting

The following diagram is the schematic diagram of Ni-CAD battery charger circuit which featured with current and voltage limiting to…

55 years ago

VOX Treble Booster Effect

The following scheme diagram is the circuit diagram of VOX treble booster effect. A treble booster is an effects unit…

55 years ago

Surround Sound Decoder

The following schematic diagram is a small surround sound decoder circuit. You may use this decoder surround sound systems for…

55 years ago

Tube Distortion Pedal

The following circuit is tube distortion pedal for guitar effect. The circuit designed by Ron Black. Circuit Notes: IC1 :…

55 years ago

Lead-Acid Battery Charger

The following scheme diagram is the circuit diagram of Lead-Acid battery charger. This circuit provides an initial voltage of 2.5…

55 years ago

200mA/Hour – 12V NiCAD Battery Charger

The following diagram is the schematic diagram of 12V NiCAD battery charger with charging rate of 200mA/Hour. Components List: Resistor:…

55 years ago

Tone Booster

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

55 years ago