News and Updates
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Air Flow Detector Circuit Diagram
Airflow detection is often necessary for many applications or systems where it is necessary to detect the presence of air…
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Multi-Status Indicator Using Single RGB LED Schematic Circuit Diagram
Monitoring circuits in battery chargers, water-level indicators, etc use LEDs to indicate the status of certain conditions. Presented here is…
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LED Thermometer Schematic Circuit Diagram
The circuit described here is the digital and display section of a thermometer; the analogue circuitry and signal conditioning required…
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Telephone Line Indicator Schematic Circuit Diagram
Many ‘busy’ indicators for use in telephone systems present undesirable loading of the telephone line. Some circuits are very simple…
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10-Watt Audio Amplifier using LM1875 Schematic Circuit Diagram
Here is a simple 10-watt audio amplifier using IC LM1875. The IC has five pins and can deliver a maximum…
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USB Standby Killer Schematic Circuit Diagram
When turning a computer on and off, various peripherals (such as printers, screens, scanners, etc.) often have to be turned…
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Solid State Voice Recorder
A solid-state recorder (SSR) is a recording device that uses solid-state technology to store recorded audio data. SSRs record and…
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