waveguide, toroid, toroidal, photodetector, dipole antenna, plasmon, resonant cavity, inductor, piezoelectric crystal, dipole moment, dopant, photodiode, transducer, phonon, passband, crystal oscillator, exciton, josephson junction, sine wave, phototransistor, inductance, diffraction grating, dispersive, venturi, triode, absorption coefficient, heterodyne, nanotube, dielectric, quartz crystal, piezo, amplifier, ferrite, transistor, dipole, monochromator, thyristor, planar, interferometer, magnetization, scintillator, oscillator, conductance, quasicrystal, carbon nanotube, capacitances, quadrature, piezoelectric, electrode, magnetic dipole, variable resistor, substrate, birefringence, volute, bypass capacitor, cryostat, bimetal, diffraction, capacitor, directivity, actuator, condenser microphone, semiconducting material, tuning fork, photocurrent, dielectric constant, electron, silicon, coil, magnetisation, submicron, electromotive force, diffracting, absorbance, cantilever, cuvette, magnetic flux, excitation, boron nitride, impedance, ellipsoid, ultrasonics, microchannel, bolometer, semiconducting, photoluminescence, displacer, diode, photoconductive, magnetron, rectifier, photomultipliers, halide, electret, chromophore, bilayer, hyperfine, impeller, harmonics, pulser, attenuator, quasiparticle, resonators, solenoid, antenna, circuit, filter, transformer, waveguides, furnace, sensor, absorber, collimator, concentrator, conveyor, damper, cavity, feedback, multimode, detector, loop, element, nonlinear, tuned, twostage, bilinear, damped, lumped, pass, pole

soundboard, soundbox, sounding board

soundboard, sounding board

chamber, electrical circuit, electric circuit, system, unit

cavity resonator, resonating chamber