The Vibraphone
This 38 inch conversation tube was listed in the 1922 Montgomery Ward
catalogue as being like a conversation tube, but with an internal metal
diaphragm inside to intensify the sound waves.
It came in two models. This more expensive silk one sold for $3.29.
The 2.25 inch bell opening is made of
metal and the ear piece is hard rubber.
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The Vibraphone at the right is the cheaper mohair model. It sold for
$2.85.
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A different, but similar conversation tube covered with multi-colored
woven fabric.
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The Vibraphone in use. The man, William Foster, is speaking to his hard of hearing aunt,
Bertha Foster, near Remus Michigan. This picture was taken in
the 1920s.
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Here is the ad for the Vibraphone from Montgomery Ward's 1922
catalogue.
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