No definitions found for 'feedback amplifier'
Perhaps one of these:
feedbag,
ftbfs,
footfight,
feedback control,
feedback circuit,
foot page,
ftp software, inc.,
foot post,
feed back,
food fish,
footpace,
feed bag,
ftp server,
feedback,
fat back,
feedback loop,
food vacuole,
fatback,
food poisoning,
foot passenger,
foot vise