This circuit was found in the January 1991 issue of Radio Electronics magazine. The circuit uses integrated circuits of the time and the coils depend on the tuned bands.
This circuit uses only two common transistors and provides good audio power in a speaker. Readers who...
This amplifier step for small signals can use any general-purpose transistor like the BC548. The...
I found this article by my friend A. Fanzeres in a Uruguayan magazine Corriente Alterna in July...