This oscillator was found in the January 1987 issue of Radio Electronics magazine. The frequency is adjusted by C1, and the output has good symmetry. The power supply is typically 3 to 12 V.
Found in the August 1982 issue of Radio Electronics magazine, this circuit lights LEDs in sequence...
Found in an Electronics Now from the 90s, this application uses an integrated circuit from the...
This peak detector has a memory to prolong the response. The circuit is from American...