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 "Fortissimo" Transistor (Body) Hearing Aid

The Beltone "Fortissimo" was produced by the Beltone Electronics Corp. of Chicago, IL in 1984.

Don't confuse this "Fortissimo" with the Beltone Model F "Fortissimo" of 1956. (Beltone sometimes used the same model name more than once as in this case.)

The "Fortissimo" measured 3½” by 2¼” by ¾” and weighed 3½ oz with the battery.

The case was tan-colored plastic with a large chrome pocket clip.

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Back

 
Top view of the Beltone "Fortissimo" showing the 4-position lever (left) "O" off, "M" (microphone), "T" (t-coil)  and "TM" (t-coil and microphone at the same time); the microphone grill (center) and the volume control (right).

 

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Left side view of the "Fortissimo" showing the 2-prong receiver cord jack (center). The off-center recess prevented the plug from being plugged in backwards.

 

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Right side view of the "Fortissimo" showing the cover plate slid forward to reveal three adjusting screws.

The green screw (left) is labeled "GC" (gain control) and could adjust the gain from 0 to 20 dB. The red screw (center) is labeled "TC" (tone control) and could adjust the tone from normal to high. The blue screw (right) is labeled "PC" (power control) and could adjust the output power from 0 to -24 dB.

 

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Bottom view showing the make and model on the label affixed to the case—namely "Beltone Fortissimo".

 

 

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View of the battery compartment of the Beltone "Fortissimo". The whole bottom half of the case slides off to reveal the battery compartment.

 

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View of the Beltone "Fortissimo" showing the two 1½ volt No. 1015 (AA size) zinc batteries in the battery compartment.

 

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The pocket clip (left) snaps on or off the Fortissimo case as desired.

 


 

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