Seismic / Vibration Sensor

55 years ago

This is the circuit diagram of seismic / vibration sensor. The circuit simulates a seismic sensor to detect vibrations/sounds. It's…

Electronic Motor Starter

55 years ago

The above diagram is the schematic diagram of an electronic motor starter circuit. This motor starter protects singlephase motors against…

Electronic Siren based NE555

55 years ago

Here the circuit diagram of electronic siren based NE555. This circuit produces a sound like factory siren. It applies a…

150W Power Amplifier

55 years ago

This is the very simple circuit diagram of 150W power amplifier. The circuit is easy enough to built without PCB.…

1500W Power Amplifier

55 years ago

This is a very high 1500W power amplifier circuit diagram by Rod Elliott. The circuit is built using 10 pairs…

65W Power Amplifier using HEXFET

55 years ago

This is a high quality 65W power amplifier circuit based HEXFET IRF9540 and IRF540. The circuit is quite simple for…

4W Bridge Amplifier using LM388

55 years ago

Parts List: R1-2-4-5=270Ω R3 = 2.7Ω VR1 = 10KΩ Log. Pot. TR1 = 470KΩ Trimmer IC1-2 = LM388 C1 =…

Hi-Fi Compressor with Pre-emphasis

55 years ago

Here is the Hi-Fi compressor circuit with pre-emphasis. The above diagram is a circuit for a high fidelity compressor which…

Thermocouple Amplifier using CA3193

55 years ago

Above circuit design is thermocouple amplifier circuit using CA3193 operating amplifier. The CA3193 is an excellent choice for use with…

1W Stereo Headphone Amplifier based TDA2822

55 years ago

Above circuit diagram is the schematic of 1W stereo headphone amplifier. The circuit is built based TDA2822, designed for use…