Suggested by Motorola in 1968 documentation, this circuit has an efficiency of 70%. Power transistors are types of the time as are transformers.
Suggested by General Electric in an old documentation, this circuit can use modern SCRs and the...
The frequency of this oscillator depends on T, which for the audio band can be a common output...
This circuit has a common configuration widely used in projects on this site. The transistor is...