Q meter
psophometer
filter
tune
extremely low frequency
radiofrequent
frequency multiplier
scanner
multipactor
hi-fi
milliammeter
voltammeter
voltameter
measure
coherer
measuring rod
ringer equivalence number
measuring stick
rock
autodyne
phantom power
resonator
electrical circuit
radioemitter
prescaler
television channel
wavemeter
acoustoelectronics
channel
audiometer
harmonic
pulse counter
sonometer
equalize
keyboard bass
Rogowski coil
cymometer
spectrum analyzer
time signal
sphygmophone
compressor
electroencephaloscope
oscillograph
circumferentor
subcircuit
ondometer
boot
radio frequency integrated circuit
detector
radio cassette recorder
scaler
tweeter
ultraharmonic
tuning
pentaband
altigraph
phonometer
radiodetection
ometer
electronic scanner
subharmonic
wobbulator
dial
electric
expander
electronystagmograph
dynamic microphone
magneto-dynamic microphone
vibrograph
digital
ondes martenot
mic
Kundt's tube
quadband
mike
equalizer
harmonic analyzer
microphone
downconversion
tank circuit
bandpower
equaliser
rheometry
loop
ammeter
mini hi-fi system
reading
crossband
cardiotachometer
pulse height analyzer
radio
Machmeter
kicksorter
telethermograph
transverter
subwoofer