Zenith Model ZA-323 FM Training Hearing Aid
The Zenith Model ZA-323 FM Training Aid was a body style transistor
hearing aid manufactured by the
Hearing Aid Division of the Zenith Radio Corp. around 1975.
The Zenith Model ZA-323 FM Training Aid measured 2 9/16" x 1
11/16" x ⅝" thick (6.4 x 4.3 x 1.6 cm), and
weighed 2.2 oz. (64 g) without the battery.
The case was brushed aluminum with a cream-colored plastic top and
bottom.
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Top view of the Zenith Model ZA-323 FM Training Aid showing the 1 to 7 volume
control/on-off switch (top left), the square microphone grill (center) and the 3 position "M" (microphone),
"B" (both microphone and ?FM trainer) and "T" (?FM trainer) positions .
It doesn't appear that this hearing aid had a t-coil so the "T" above
probably doesn't refer to a t-coil position.
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The left side of the Zenith Model ZA-323 FM Training Aid showing the the
two-position "FM" & "A/L" (?auditory learning) switch. I think this hearing aid had 2 FM
receiving frequencies. In the FM position, the student heard the
teacher. In the A/L position, the student listened to a recorded
auditory training program probably from a tape player.
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View of the right side of the Zenith Model ZA-323 FM Training Aid hearing aid showing the
3-hole receiver cord jack (center). The receiver and receiver cord are
missing.
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Bottom view of the Zenith Model ZA-323 FM Training Aid hearing aid showing the
closed battery door with the name "Zenith" and below it "FM Training
Aid" and the model number "ZA-323".
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Rear view of the Zenith Model ZA-323 FM Training Aid hearing aid showing the
battery door partially opened from the bottom of the case. A spring clip
held the battery door shut.
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Bottom view of the Zenith Model ZA-323 FM Training Aid hearing aid showing the
battery compartment. This
hearing aid took an "N" size 1.4 volt No.
401 mercury battery. To the left of the spring on the right is a
little adjusting hole labeled "PWR" (above) and "FR" (below) to ?adjust
the output power. |
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Rear view of the Zenith Model ZA-323 FM Training Aid hearing aid showing
the pocket clip at the top.
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