We found this circuit in a 1971 documentation. The circuit can be assembled with more modern transistors such as BC548 for Q1, BC558 for Q2 and BD135 for Q3.
This configuration, which appears in other projects in this section and on the website, shows how...
This circuit is from the 1992 Radio Electronics Handbook. The components used are from the period,...
This circuit was obtained from American documentation from the 1990s. The transformer can be a car...