Found in Popular Electronics from the 90s, this circuit uses still common components. Its power is 20 W, requiring care when winding the transformers.
This circuit for RF signals was found in the March 1987 issue of Radio Electronics magazine. The...
We found this circuit in Texas Instruments' Linear Circuits Applications. It is a low consumption peak...
This medium wave radio must use a high impedance piezoelectric, crystal or magnetic phone and the...