Cabinet made of
solid mahogany. Folded
black cast metal horn. The driver air gap
of this
electromagnetic speaker is adjustable.
2000 and 4000 ohm models were made.
Sidney George Brown
(1873-1948), the company founder,
was a prolific inventor of electromechanical devices,
including the well known "A" headphones, the "Microphone Amplifier" and a gyro compass.
The company also made loudspeakers and radios. In 1906
he founded Telegraph Condenser Co and in 1910 he set up
a business under his own name: S.G. Brown Ltd., in Watford (North of London) and later had an
establishment in North Acton, London W3. The
company eventually became part of the Racal organisation
which in turn became part of Thales-Racal Acoustics.
Data
DC resistance:
2000 Ohms
Dimensions
(w×h×d):
28.6 × 21 ×
35.2 cm
Made in:
1925
Purchased in:
2007
Sold in:
2021
What was
broadcast in 1925?
Listen to "Dancing" by the orchestra of Percival
Mackey,
recorded on November 19, 1925
A view inside
Advertisement for the Brown Cabinet in Radio
Expres, April 30, 1926
Advertisement in The Wireless Constructor,
November 1926
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