The crystal clock /

Marrison, W. A. 1896-1980.,

The crystal clock / by W.A. Marrison, Bell Telephone Laboratories, New York City. - 11 pages : illustrations ; 23 cm - Bell Telephone System. Technical publications, August, 1930. ; Monograph B-505 .

"A description of a new clock utilizing the vibration of a quartz crystal instead of a pendulum and providing means for the precision measurement of time and time interval." "Presented before the National Academy of Sciences, Washington, D.C., April, 1930. Published in the Proceedings of the National Academy of Sciences, Vol. 16, pp. 496-507, July, 1930." "Read before the Academy, April 29, 1930."


Astronomical clocks.
Oscillators, Crystal.
Horloges astronomiques.
Oscillateurs à quartz.
Astronomical clocks.
Oscillators, Crystal.

Clk:Atomic-Quarz-GPS Bell Labs Marrision, Warren A. quartz electronic specific