FOURTH QUARTERLY PROGRESS REPORT INVESTIGATION OF MECHANICAL OVERTONE CRYSTALS, FREQUENCY RANGE 50 MC TO MC OR HIGHER

摘要

Many groups of overtone quartz plates have been fabricated to operate at their 3rd, 5th, 7th, and 11th overtones, to cover the range from 50 MC to 150 MC per second, although only the 3rd and 5th overtones actually are required.nThis report describes improvements in the electrode design and in the electrode fabrication and plating processes.