This circuit of dozens of watts uses germanium transistors and the critical components are transformers. The circuit is from the 1960 Mullard transistor application manual.
This circuit was suggested by General Electric in a 1965 documentation. The circuit can be...
This circuit of an Electronics Now from the 90's produces an intelligent direction signal that has...
This simple amplifier stage with a transistor has a linear response from 25 Hz to 120 kHz. The...