This circuit for medium and short wave range was found in an American documentation from 1992. The circuit can use general purpose transistors and the antenna can be external or telescopic.
The 74123 TTL integrated circuit consists of a monostable that can be configured to generate...
This VCO or Voltage Controlled Oscillator was found in a Popular Electronics from 1991 but can be...
In the figure we have the power supply for the 8 W amplifier in the previous circuit. The circuit...