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 "Largo" Transistor (Body) Hearing Aid

The Beltone "Largo" was produced by the Beltone Electronics Corp. of Chicago, IL in 1967.

The "Largo" measured 2˝” by 1 5/16” by ⅝” and weighed 2 oz with the battery. The "Largo" used 6 transistors in a push-pull (PP) circuit.

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

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Top view of the Beltone "Largo" showing the volume control/on-off switch in the top left corner of the hearing aid.

 

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Left side view of the "Largo" showing the "M" (microphone) "T" (telephone or t-coil) switch (top right of center), and the volume control/on-off switch on the corner (right).

 

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Right side view of the "Largo" showing the 3-hole receiver cord jack (center).

 

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Rear view of the Beltone "Largo" showing the make and model engraved in the case "Beltone" on the upper back and "Largo" on the battery compartment door.

Note the white dot (center) above the hinge.

 

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

Notice the two sets of adjusting screws. The left two are for adjusting the power output, while the right two are for adjusting the tone.
 

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View of the Beltone "Largo" showing the 1.4 volt No. 401 mercury battery in the battery compartment.

 

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Comparison of the relative size of the Beltone "Super Largo" (left) and the "Largo" (right).

 


 

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