Cathode Phase Inversion, Otto H. Smith
Departments of Physics and Zoology, University of Minnesota, Minneapolis, Minnesota, (Received July 17, 1941)

Application of cathode phase inversion previously described is made to several practical circuits including symmetrical cathode-ray oscillograph amplification, high fidelity d.c. amplification, and differential or mixer amplifier operation. The theory of a symmetrical degenerative attenuator modification of the basic circuit is developed and practical applications are described.