Beltone Alto (Sub-model A) ITE Hearing Aid
The Beltone Alto (sub-model A) ITE hearing aid was made by the
Beltone Electronics Corporation of Chicago, IL in 1985.
Beltone produced a range of ITE hearing aids named the "Alto" in line
with their long established practice of naming their hearing aids with
music related names.
The sub-model A aids were a more-expensive line than the sub-model B
aids which were a more basic aid.
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Front view of the Beltone Alto (sub-model A) ITE hearing aid showing the serial
number (top) for the right aid. The serial no. (85-A23823) was
composed of the year (85) the sub-model (A) and the actual serial number
(23823).
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Front view of the Beltone Alto (sub-model A) ITE hearing aid showing the serial number
(top) for the left aid. By convention, the serial number for the left
aid was 1 number greater than the serial number for the right ear.
Together they made a matched pair.
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Rear view of the Beltone Alto (sub-model A) ITE hearing aid for the
right ear showing the microphone port (top center), the Mic/T-coil
switch (right), the battery compartment door (center), the volume
control knob (lower center), two trim pots (right) and the vent hole
(bottom). The trim pots (for gain and tone?) were adjusted by a tiny
screwdriver.
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Rear view of the Beltone Alto (sub-model A) ITE hearing aid for the left
ear showing the same as above except in the reverse order (upside down).
Two things of note. First, the vent hole has a plug in it (top) to make
it smaller to help prevent feedback. Second, this hearing aid doesn't
have a t-coil in it.
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Rear view of the pair of Beltone Alto (sub-model A) ITE hearing aids
showing the differences between them.
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Back view of the pair of Beltone Alto (sub-model A) ITE hearing aids
showing the name (Beltone) and model number (Alto) on the sides of the
battery compartments. Note that the name and model is written in blue
(left ear) and in red (right ear)—the same color scheme as is used on
audiograms.
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Rear view of the right Beltone Alto (sub-model A) ITE hearing aid
showing the battery compartment door in the open position.
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Rear view of the right Beltone Alto (sub-model A) ITE hearing aid
showing a number 13 battery (orange tab) in the battery compartment.
This hearing aid used a No. 13 battery such as the 1.4 volt mercury (and
later zinc-air)
Duracell No. 13 battery.
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