Found in Unitrode documentation, this oscillator uses some unusual components today such as PU and the 3 M potentiometer. The power can be made with voltages around 15 V.
Common operational amplifiers can be used on this circuit. The resistor with no value in series with...
The power of this germanium transistor audio output stage is a few tens of milliwatts. The circuit is...
This configuration is very traditional, appearing in several publications around the world. This...