adjustable capacitor [= variable capacitor]
area tuning variable capacitor
band spread variable condenser
compression variable capacitor
concentric variable capacitor
endless variable capacitor
film dielectric four-gang variable capacitor
film dielectric variable capacitor
film super-small variable capacitor
gang variable condenser
microphone effect of variable capacitor
multigang variable condenser
parallel plate variable capacitor
polymer variable condenser
semi-variable condenser
silicon variable capacitor
single gang variable condenser
split-stator variable capacitor