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.

 

Behind the Ear (BTE) Transistor Hearing Aids

Beltone "Avanti" Behind-the-Ear Hearing Aid

The Beltone "Avanti" behind-the-ear hearing aid was produced by the Beltone Electronics Corp. of Chicago, IL in 1985.

This hearing aid used a push-pull (PP) amplifier.

The forward-facing microphone port is in the clear plastic above the ear hook.

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Back

 

Rear view of the Beltone "Avanti". Notice the small circle in the plastic where the optional directional microphone could be installed (top).

The volume control was in the center and immediately below it is the 3-position "M" (microphone), MT (both microphone and t-coil at the same time) and "T" t-coil switch.

The line of 3 vertical holes below the t-switch doesn't seem to serve any purpose in this model.
 

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Rear view of the Beltone "Avanti" showing the adjustment cover door which swung up to reveal 3 adjusting screws. The "P" red screw (top) was for adjusting the power output between 112 and 133 dB. The blue screw (center) was for adjusting the tone from low to high, while the "G" green screw (bottom) was for adjusting the gain from min. to max.

The battery door at the bottom (right)  swung up. This hearing aid used a No. 675 battery. The battery door acted as the on-off switch when pulled out from the back, but to change the battery you pulled it out from the front.

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View of the Beltone "Avanti" showing its size.

The words "Beltone" and "Avanti" are molded into the side of the case (right).

 


 

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