Detent uhf tuner with preset memory

Details Detent uhf tuner with preset memory Detent uhf tuner with preset memory

F - Mech Eng,Light,Heat,Weapons

16

H

365/25, 365/29

F16H 35/18 (2006.01) G05G 9/08 (2006.01) H03J 1/04 (2006.01) H03J 1/08 (2006.01) H03J 1/14 (2006.01)

Patent

CA 1053813

DETENT UHF TUNER WITH PRESET MEMORY Abstract of the Disclosure A detent type tuning mechanism for a UHF tuner having a continuously variable tuning shaft includes a detented selector shaft, a gear train interconnecting the tuning shaft and the selector shaft, and a memory type fine tuning mechanism including a rotatable turret having mounted thereon a plurality of cams each engageable by a fine tuning shaft when the selector shaft is positioned in predetermined ones of the detent positions. A Geneva mechanism is employed to rotate the turret a predetermined increment to bring a different one of the cams into engagement with the fine tuning shaft when the selector shaft is rotated a predetermined number of detent positions. Each cam thereby serves as a memory fine tuning member for a predetermined group of ad- jacent UHF channels corresponding to a like number of detent positions of the selector shaft. An indicator dial provides a numerical display of the precise UHF channel selected at each position of the detented selector shaft.

233966

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