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Build a powerful vehicle headlight timer circuit with precise timing control, enabling effortless access to dark locations for up to 1 minute and 30 seconds, thanks to a simple and reliable 1-minute delay.... [read more]

Build versatile motorcycle alarms with these compact, easy-to-construct circuits. Protect your Classic Bike and other valuable equipment with these innovative designs – perfect for safeguarding removable panels, panniers, and more. These alarms offer instant protection and peace of mind, enabling you to create custom security solutions for any situation.... [read more]

Power a LED from 120V AC with this innovative circuit, achieving a safe 5V output with minimal ripple. Learn to control LED current and build a robust, low-power AC-to-DC converter for exciting projects.... [read more]

Build powerful fan circuits with this innovative approach, utilizing a capacitive voltage divider for efficient and compact cooling solutions. Optimize your designs by carefully selecting capacitor values and implementing robust current limiting techniques for safe and reliable operation.... [read more]

Build a stunning electronic barometer replica inspired by Torricelli’s groundbreaking design. This circuit uses a Motorola MPX2200AP sensor and an LM3914 to display atmospheric pressure with 10 LEDs, offering a precise measurement range of 950 to 1040 hPa.... [read more]

Harness the power of a 555 timer to create a dynamic negative voltage circuit, reaching -7 volts while drawing just 6 milliamps. Build a robust, symmetrical +/- 5 volt supply with a 5.1 volt zener diode for precise regulation and expand your circuit's capabilities.... [read more]