Found in a 1992 book, this circuit is intended for operation with audio signals. Equivalent operational amplifiers can be used. The optical coupler is an unusual type today.
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...