Found in Popular Electronics from the 90s, this circuit uses still common components. Its power is 20 W, requiring care when winding the transformers.
We found this circuit in a Popular Electronics from the 80s. This circuit eventually doesn't work with...
This circuit is interspersed between the external antenna and the short-wave receiver, providing much...
We found this circuit in a publication from the 90's. The circuit is used with sinusoidal...