Found in a 1943 publication this class B amplifier has good performance. The circuit does not include the power supply and has only one input.
An interesting circuit suggested to indicate when a device is turned off. In the figure we have...
This circuit was found in a RE Experimenter Handbook from the 90's. The components are of the...
This low power amplifier was found in a Japanese publication from the 1960s, using transistors from that...