Only for reference this is a circuito f a commercial receiver of the year 1958. The circuit uses coils and transformers hadr to find in our days. The circuit is destinated to receive MW stations.
This circuit, from the 1977 GE semiconductor manual, uses a unijunction transistor beyond the...
Using a small speaker as a microphone, this 10-LED circuit was found in the March 1992 issue of...
We found this good power amplifier with the LM12 integrated circuit in the March 1989 issue of...