Tellegen B.D.H. The Gyrator, a New Electric Network Element

Philips Research Laboratories. 1948.
Статья изобретателя гиратора. (англ. ).Содержание:
ntroduction.
Statement of the problem - the ideal gyrator.
Properties of the ideal gyrator.
Networks with ideal gyrators.
Related problems in mechanics and electromechanics.
The origin of the reciprocity relation.
The violation of the reciprocity relation.
The realization of the gyrator.
Another realization of the gyrator.
Appendix.