This 9 W amplifier with transistors from the 60's was found in documentation of the time. The output transistors must be mounted on heat radiators and the power supply is included.
This circuit is from 1997 Linear Technology Applications. The circuit uses common components at...
We found this elementary receiver in a 1983 publication, but it can be easily assembled today, as any...
This circuit has a type of bias called "virtual earth" providing good gain, given by R2. The...