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Categories of circuits

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All circuits are grouped into several categories. You may browse categories using menu on the right, or categories list below:

Audio

Audio amplifier circuit diagrams, but also preamp, equalizer, mixer and other electrical circuit diagrams.

Alarms, control, timers

Timers, alarms, detectors and other sensor based circuit diagrams

Tools and measuring

Build your own electronics instrument for testing components and circuits, or temperature measuring device...

Power supplies

You need a power supply for your laboratory? Here are some electric diagrams of several types of power supply: high power, stabile voltage, battery charger, variable voltage etc.

Radio

Am, fm transmitters, receivers, RF amplifiers, detectors, VHF, wireless microphones, spy bugs...

Light and LED

Very popular circuits! Running lights, stroboscope, light shows

Miscellaneous

Miscellaneous electronics circuits

Telephone related

Telephone circuit diagrams, phone bugs, custom ring tone... Make your phone glows when someone calls you and similar.

For your car

In this circuit diagrams category you can find speed meter, courtesy light, siren horns, etc.

PC related

Extend your PC using these circuits

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