This Japanese radio is from the 60s, presenting excellent sensitivity and an output power of 100mW with 6 V power from ordinary batteries. The circuit is of the superheterodyne type.
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...