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.

 

Vacuum Tube Hearing Aids: 1921-1953

Paravox Model VH "Standard" Vacuum Tube Hearing Aid

The Paravox Hearing Aid Company of Cleveland, Ohio manufactured the Paravox Model VH (Standard) vacuum tube hearing aid in 1944.

The brass case was beige-colored with gold trim.  The Model VH had 3 vacuum tubes.

The Model VH measured 5” by 2⅜” by 1” and weighed a hefty 9 oz. without batteries.

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Top view of the Paravox VH showing the volume control/on-off switch at the top center. This was the only control on this aid.

 

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The back view of the Paravox VH hearing aid.

An unusual feature of this aid is that instead of plugging the receiver cord into the hearing aid, you slid it into place (from the bottom).

Notice also, the two pocket clips (top).
 

 

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Another unusual feature of the Paravox VH is that the battery compartment cover slid, rather than opened with the usual hinged cover. Here it is shown mostly opened.

The Paravox VH used a 1˝ volt C cell for its "A" battery (left), and a 30 volt 430-E "B" battery (right).


 

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The Paravox VH had a crystal receiver like many of the other vacuum-tube hearing aids of this period, rather than a dynamic receiver. The crystal receiver was 1" in diameter (larger than most dynamic receivers).

The picture at the right shows the back side of the crystal receiver. Notice that the receiver has the same unusual "plug" as the body and it slides into place (from the right).

 

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Side view of the crystal receive with the ear mold attached. Crystal receivers were thinner than dynamic receivers.

 

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The Paravox Model VV3 came with a plastic "Humidrier" case to suck out the moisture when it was put in this case and a drying agent placed in the bottom.

Notice the two plastic stubs sticking up about half way (left and right center) to hold the hearing aid above the drying agent.

It also provided place for the receiver, ear mold and receiver cord under the aid.

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The Paravox VV3 hearing aid in its "Humidrier" case.

 

 

 

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