A/B Box Switch 2 Inputs 1 Output with Dual Op-Amps

This is a A/B Box switch pedal schematic with two inputs and one output and featured with dual operational amplifier…

55 years ago

Very Simple Radio Control (R/C)

Above diagram is a very easy and efficient receiver for actuating garage doors, starter motors, alarms, warning systems and many…

55 years ago

Distortion Booster

The following circuit is an distortion booster effect for your electric guitar. I don't know whether this circuit is really…

55 years ago

NAND Gate Clock Generator

The following scheme is the clock generator circuit diagram which build based on NAND Gate logic IC. You may use…

55 years ago

6A / 0-28V Variable Power Supply

The following diagram is the schematic diagram of variable power supply which will deliver 0 to 28V output voltage at…

55 years ago

6V Gel Cell Battery Charger

The following scheme diagram is the battery charger circuit for 6V Gel Cell battery type only. Components List: R1 =…

55 years ago

FM Receiver Antenna Amplifier

This is the active FM receiver antenna amplifier, used to boost the FM signal catch by the antenna, you may…

55 years ago

Simple Electronic Combination Lock

The following diagram is a very easy and simple electronic combination lock based on IC LS7220. Component Part List: C1…

55 years ago

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…

55 years ago