This repellent operates with frequencies from 30 to 45 kHz, serving for insects and rodents. The circuit is from 80s documentation. The transducer is a piezoelectric type.
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...