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 produces two signals with inverted phases. One is taken for the emitter of Q1 and the...
This circuit is from an Electronic Design of the 90's. The circuit can be implemented with more...
We find this circuit in an 80's EDN. The circuit can be used with equivalent operational,...