The circuit shown was obtained in American documentation from 1968. MOSFETs can be replaced by equivalents. The circuit dissipation is less than 0.5 mW.
This circuit was found in a RCA documentation from 1977. The integrated circuit is uncommon today. It is...
This monotone alarm oscillator circuit was found in July 1975 Radio Electronics magazine. Power is...
This circuit was found in a 1967’s Ferranti documentation. The components are from that time. The...