Hugh Hetherington Hearing Aid Museum
Hugh Hetherington Hearing Aid Museum

The Hearing Aid Museum

Hearing Aids of all types—Ear Trumpets, Carbon Hearing Aids, Vacuum Tube Hearing Aids, Transistor Hearing Aids, Body Hearing Aids, Eyeglass Hearing Aids and much more!

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Click on the "General Information" button (top button above) for an overview and general information on this category of hearing aid.

 

Body Type Transistor Hearing Aids

Beltone Model F "Fortissimo"  Transistor (Body) Hearing Aid

The Beltone Model F "Fortissimo" was produced by the Beltone Electronics Corp. of Chicago, IL in 1956.

Don't confuse this Model F "Fortissimo" with the Beltone Fortissimo of 1984. (Beltone sometimes used the same model name more than once as in this case.)

The Fortissimo measured 2⅝” by 1˝” by ⅝” and weighed 2˝ oz with the battery. It used 5 transistors. It had a wire pocket clip below the gold-colored microphone grill.

The case was metal front and back over a black plastic chassis—visible on all sides.

Note the small size of the receiver in this model.

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Top view of the Beltone Model F showing the volume control/on-off switch in the top left corner of the hearing aid. The "M" (microphone) "T" (telephone or t-coil) switch is in the center to the rear.

 

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Left side view of the Model F showing the two position tone control (upper right of center) and the volume control/on-off switch on the corner (right).
 

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Right side view of the Model F showing the receiver cord jack (center). The square hole above the right side of the receiver jack was for a protrusion on the receiver cord plug so it couldn't be plugged in wrong.

 

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Rear view of the Model F showing the make and model engraved in the case "Beltone Model F".

Note the white dot (center) above the hinge.

 

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View of the battery compartment of the Beltone Model F. The battery compartment door is hinged at the top and swings upward.


 

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View of the battery compartment of the Beltone Model F with a 1.4 volt No. 401 mercury battery in place.
 

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The Beltone Model F "Fortissimo" in its original case.

 

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Outside view of the original case of the Beltone Model F.

 


 

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