This circuit uses an 18 MHz crystal to generate 36 MHz signals. We found it in an 80's documentation. The circuit has an input for frequency modulation.
This small transmitter for the medium wave range (MW) was found in a 1980 publication. Its signals...
This interesting circuit was presented in an article in Radio Electronics magazine in July 1979....
This inverter can reach a power of 300 W depending on the transformer used. In this case, a...