Tuner device for a television receiver

摘要

A tuning device for a television receiver in which the electrical components are largely formed by thick film deposition techniques on a ceramic support plate. The tuning device includes a frequency converter which acts to convert the input frequency to the intermediate frequency of the receiver and which is fed by preceding filters and converter circuits only with UHF signals regardless of whether the receive is tuned to the VHF or the UHF wave band. This is achieved by means of high- and low-pass filters and a further converter circuit which converts VHF signals to UHF when energized to do so by an oscillator which is controlled to operate only when the VHF wave band is selected.