This alarm oscillator was found in the December 1974 issue of Radio Electronics magazine. The power transistor must be equipped with a good heat sink. The Frequency basically is given by C1.
June 2017 - Bosch's new low G triaxial sensors can now be obtained from Mouser Electronics. The...
This circuit is from a Motorola integrated circuit manual. The integrated used is no longer common...
This car amplifier was found in the 1982 SGS Linear Integrated Circuits manual. The circuit can be...