 |
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High impedance
horn
loudspeaker |
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Electromagnetic loudspeaker,
made by Automatic Telephone Manufacturing, Liverpool. |
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Black aluminium
flare with black cast metal neck and base. The distance between
the magnet and the diaphragm can be changed with a slide
in the base. |
|
Impedance:
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2000 Ohms |
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Dimensions: |
height :62 cm; diameter
flare: 36 cm |
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Made in: |
±1925 |
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Purchased in: |
2007 |
|
 |
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Detail |
 |
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Advertisement in The Wireless Constructor, June
1926 |
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