This circuit was obtained from the February 1992 Radio Electronics magazine. In it, a bar of 4 LEDs flashes continuously at a speed given by C1 and the setting of R3.
This 80s signal follower makes use of an audio amplifier of the era. The circuit can be adapted to...
August 2017 - The PIC32MM microcontrollers of the Microchip 32-Bit Family can be obtained from...
This sensitive AM radio doesn’t need external antenna, picking easily local stations. The output...