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 configuration is from a 1964 US documentation valid for any FET. The range of power voltages...
Other operational amplifiers series, such as the MC34072, MC34074, MC35071, MC35072, MC35074 d...
With the circuit shown in the figure it is possible to generate signals up to 65 MHz. The values of...