| 摘要 |
The tuner, using a variable reactance device for voltage control, is comprised of variable capacitance diodes (D1)-(D4), receivable frequency selecting devices ((TL1)-(TL4, (TL1)-(TL7)), and a UHF high-frequency amplifier circuit(109). The devices for limiting the boundary of tuning voltage(Vt) are connected to the tuning voltage generating circuit (200). The end tuning voltages (V2)(V3)(V4)(V5) of the residual receiving band are within the value of the limited tuning voltage (V1) (V6).
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