The transistors of this circuit found in an English 1980s documentation may be the modern BC548 equivalents. The circuit is battery powered and the earphone must be crystal.
This circuit was found in a 1989 documentation. The circuit directly controls a power load by the use...
This ttransistor test was found in a 1987 documentation. It is a simple oscillator that allows to...
January 2017 - Mouser Electronics is supplying the new SIDACtor protection thyristors from...