In brown painted metal box with two
binding posts for the connecting wires at the top. A needle
can be inserted in the needle holder below.
By replacing the acoustic reproducer
of a gramophone by this magnetic pick-up and connecting
it to a radio or amplifier, greater amplification was
Brown supplied a free adaptor plug
that made it possible to use the electrical pick-up,
without altering the wiring of a radio or amplifier.
Brown also claimed
that needle scratch could be reduced considerably, but
that was mainly because this kind of early sound boxes
produced little treble and because the signal-to-noise
ratio in the manufacture of records had improved with
the introduction of the electric cutter.
Brown introduced this product in
The original price of the pick-up was 23 shilling.
Dimensions (h x w x d)
7.5 x 5.4 x 3.5 cm
(including connecting sleeve on the back)
Picture of the
Brown GPU No2
element in "The Brown Budget", November 1928
The inside of the
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