Tuning device
U-shaped microstrip resonant circuit
UHF television tuner with electrical fine tuning
UHF tuning circuit utilizing a varactor diode
Variable capacitance device having a plurality of capacitance el
Variable impedance circuit
Variable speed tuning selector
Variable tuning circuit using variable capacitance diode and...
Variable-capacitance tuning circuit for high-frequency signals
Voltage-controlled variable tuning circuit
Wiper contact for turret-type varactor controller