1.5V and 9V Battery Tester
Here is the circuit diagram of battery tester designed by Matthew B.. This circuit can be used to measure the…
Adjustable Sine/Square Wave Oscillator
The following scheme diagram is the circuit diagram of simple easily tuned / adjustable sine and square wave oscillator. With…
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…
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…
VOX Treble Booster Effect
The following scheme diagram is the circuit diagram of VOX treble booster effect. A treble booster is an effects unit…
Surround Sound Decoder
The following schematic diagram is a small surround sound decoder circuit. You may use this decoder surround sound systems for…
Tube Distortion Pedal
The following circuit is tube distortion pedal for guitar effect. The circuit designed by Ron Black. Circuit Notes: IC1 :…
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…
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:…
Tone Booster
Below circuit is the tone booster circuit. According to the name of circuit, the purpose is to amplify the sound…