Maico Model S-1 (Ultra Power) Transistor (Body) Hearing Aid
The Maico Model S-1, known as the
"Ultra-Power", was manufactured by Maico Electronics, Inc. of
Minneapolis, MN in 1958. The name "Maico" was derived from the
initials of the Medical Acoustic Instrument Company.
The S-1 was
a sub-model of the earlier Model S which appeared in 1955. Both of these
hearing aids used 5
transistors, however, the Model S-1 had a push-pull output arrangement.
The S-1 was rather large for its type and measured
3⅝” by 2˝” by 1”. It weighed 5 oz with battery.
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The microphone was located on the top (behind the grill—center). The
volume control was on the top right corner. The
receiver cord plugged into the jack on the top left. The normal – high tone control switch was located on the right
hand side of the case. Although this unit does not have a
telecoil, it was an optional extra and the switch would have been on the
top right (black oval on the left in picture). |
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