This 8 W amplifier with germanium transistors was found in a Japanese documentation from 1967. The circuit is of the commercial type and is powered by two 12 V batteries or by a symmetrical source.
The circuit shown serves as a direction indicator or arrow for bicycles, robots and other...
This circuit was found in an 1888 publication. However, since it uses common components, it can...
Featuring low output impedance and high input impedance, this configuration was found in a 1980s...