Symmetrical oscillators for low common mode interference

Describes a way to form a balanced circuit by connecting together two single ended circuits. This method cannot be applied to oscillators since the two halves of the circuit are independent and exact complimentary synchronism of frequency will not be present at the outputs. However many oscillators are based on single ended two port feedback networks. The author shows how to transform these circuits into fully balanced circuits having complimentary outputs and exact circuit symmetry