This 3 A adjustable source uses the LM350 integrated circuit, which must have a good heat radiator. The circuit is from 80s documentation and has been explored in other versions on this site.
This small medium wave radio was manufactured in the 1960s in Japan. The circuit is powered by 4...
This transistorized receiver was found in Popular Electronics from February 1968. Transistors are...
We found this circuit in the Linear Applications Handbook by National Semiconductor. The circuit can...