A Vhf-uhf Television Turret Tuner
نویسنده
چکیده
ITH the advent of ultra-high-frequency television and the subsequent allocation of specific UHF channels, the need for a VHF-UHF television tuner becomes apparent. This tuner should ideally make the maximum use of the same components on VHF and UHF, so that there would be a minimum duplication of parts. This design should be one which would give optimum performance and still be easy to fabricate and align. The tuner should also use a 41-megacycle intermediate frequency to take full advantage of the protection from interference which the Federal Communications Commission provided in its channel allocation plan. A sixteen-position turret type of tuner which has been developed accomplishes some of the objectives of the ideal tuner. A careful study of the television channel allocations showed that sixteen positions on the turret would cover channel requirements of almost any receiver location in the United States. This report describes the technical aspects of the television tuner.
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