This radio for the AM band has the traditional superheterodyne configuration with several transistors and integrated audio amplifier circuit. The circuit is from the 70s.
This is the conventional astable configuration of the 555 integrated circuit already explored in...
The maximum current of this circuit can reach 500 mA with BD136 and 1 A with TIP32. The circuit...
This circuit was found in a 1980s technical documentation. It tests the inverse characteristics of a high...