Multi-band television tuning apparatus

Details Multi-band television tuning apparatus Multi-band television tuning apparatus

1975-03-31

1977-02-22

Safourek, Benedict V.

Telegraphy

Systems

Printing

178DIG13, 325461, H04B 116

Patent

active

040094413

ABSTRACT:
A VHF mixer serves as an amplifier-mixer for VHF and an IF amplifier for UHF and CATV. UHF and CATV tuners produce the UHF and CATV IF signals respectively. A band selector switch enables a VHF local oscillator and disables UHF and CATV local oscillators to receive VHF, enables the UHF local oscillator and disables the VHF and CATV local oscillators to receive UHF and enables the CATV local oscillator and disables the VHF and UHF local oscillators to receive CATV.

REFERENCES:
patent: 2873360 (1959-02-01), Lyman
patent: 3839678 (1974-10-01), Bell
patent: 3931578 (1976-01-01), Gittinger
patent: 3942122 (1976-03-01), Nakanishi
"Details of The New R.C.A. Cable Receivers" -- Bruce Anderson--Oct. 1973 pp. 18-22 of Electronic Servicing--Oct. 1973 edition.

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