analog
analogue
arrow
audio
broadcast
channel
circuit
compressor
control
decibel
device
dials
direct
electric
electrical
electricity
electronic
equipment
gauge
gear
indicator
interface
level
measure
measurement
meter
metr
mixer
monitor
music
peak
pointer
radio
record
recorder
resistance
retro
scale
scientific
signal
sound
stereo
studio
tape
technologic
tool
value
voltmeter
volume