This high quality circuit with complementary symmetry was found in an Electronics World of 1966. It can be made with modern transistors like the BD or TIP series.
We obtained this circuit from a 1993 documentation. The circuit has 9 current ranges that are...
This FM receiver tuning step circuit was found in a 1960 documentation. No information about the...
This circuit consists of two stages that each shift 180 degrees the signal. The circuit was...