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.
This circuit is from 1995 documentation. In the original, the source is symmetrical at 12 V, but...
This circuit was found in a 1978 British magazine, but it can still be mounted by simply replacing the...
Due to its low working voltage, this circuit of an old EDN can be associated with a...