82 Detent manual varactor tuning system
AFC voltage superimposing circuit for electronic tuner
All electronic digital tuner system with memory
Anti backlash and treadle bar linkage system
Apparatus for automatic adjustment of an inductor in a tuned cir
Arrangement for tuning a balanced-to-ground resonator
Automated adjustment of air-core coil inductance
Automatic function setting and indication arrangement for a comm
Automatic tuning apparatus
Band switching circuit tuner
Battery powered scanning receiver with synchronous power cycling
Boosted-bias tunable filter with dynamic calibration
Boosted-bias tunable filter with dynamic calibration
Boosted-bias tunable filter with dynamic calibration
Channel indicator device
Channel selection apparatus
Channel selection apparatus provided with memory for digitalizin
Channel selection mechanism for an electronic tuner
Channel selector
Channel selector employing variable capacitance elements for tun