Philips 2047 field coil speaker
Here we have a ultra rare Philips 2047 field coil speaker .
30 cm = 12"
Made between 1930 and 1940 we suppose.
This Philips 2047 field coil speaker has around 15 Ohm voicecoil ( cinema standard at that time ) and only 15 Ohm for the field coil.
That allows to run the unit with a " battery " , in case 5.8 Volt DC with around 0.4 Ampere.
Not for disco but clear sounding for such an old speaker.
No rubbing , the optical is more bad than the technic .
Enjoy this nice Philips 2047 field coil speaker .
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