Found in a Popular Electronics from the 90s, it applies to the old answering machines that used tapes. It emits a warning beep on the drive.
September 2016 - Mouser Electronics is offering the new oscillator clock PECL series PE55K of the...
This symmetrical limiter or reaper circuit is based on a zener diode. Voltage drop across common...
This circuit was found in the August 1994 issue of Electronics Now magazine. The 4046 is uncommon...