This 1/2 hertz high selectivity filter was found in the December 1990 issue of Radio Electronics magazine. The source must be symmetrical. The capacitors can be changed for other frequencies.
This oscillator produces short duration pulses using a PUT. The circuit is from a Radio...
This is a one-channel application for the Texas Instruments TMP390 sensor obtained directly from...
With this circuit you can control up to 3 A of LEDs in different sequences, using a PWM...