A Balanced Armature, cone loudspeaker
Cabinet Dimensions mm; W=362, H=356, D=171
See the KB 232 Speaker in the Radio Museum
In the photos above it will be seen that at some time in the distant
past the original KB Balanced
Armature speaker has been upgraded with a "Silver Ghost" permanent magnet
moving coil speaker driver, which probably originates from around 1933.
Ghost speech coil resistance is 9 ohms. The coil damaged so was rewound
and a new spider was made and fitted.