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High impedance loudspeaker |
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The base of the loudspeaker is made of cast metal. The
three feet end in a claw, holding a ball. The
neck is made of brass, the flare is made of aluminium,
painted dark brown. By turning the big knurled knob in
the base, the distance between the magnet and the
diaphragm can be changed. |
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Burndept operated in Blackheath in
England from 1921 to 1931, producing some of the finest
quality early radios, from small crystal sets to
powerful four-valve loudspeaker-linked receivers. The
brand name was
Ethophone (Ethovox for the loudspeakers). They were the first to put domestic
radio receivers into cars, aeroplanes, houseboats and
yachts. |
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The company made a
delivery van in the form of a giant Ethophone V model
(1923, picture above), and placed a receiver on a hand
cart with an aerial and loudspeakers. Unfortunately,
like many pioneering organisations, Burndept saw the
large market going to manufacturers less interested in
novelty and more in cheapness and mass production. By
1927 the firm was in deep financial difficulty and was
placed into receivership. In 1934 the old name was
resurrected when it was bought by a Thomas Cole, a
battery maker, who opened a factory at Erith and took on
those Burndept staff who wanted to join him. His new
trading name was Vidor.
It remained a factory, passing through the ownership of
various electrical manufacturers including
Siemens and
GEC, but it
was demolished in December 1995. |
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Made in: |
1925 |
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Purchased in: |
2005 |
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Serial number: |
702385 |
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Dimensions: |
height 64 cm, diameter of the flare
36 cm |
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Impedance: |
2000 Ohms |
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