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

Beclere Model P3 "Monomite" Vacuum Tube Hearing Aid

The Beclere Model P3 "Monomite" vacuum tube hearing aid was manufactured by Beclere Co. Ltd. of Oxford, England in 1950.

Sporting a shiny chrome case, the Beclere "Monomite" weighed a hefty 6¾ oz. without batteries. It measured 3⅜" x 2½" x ⅞" thick.

The microphone grill consisted of 2 vertical slots—one on each side of the name (upper right).

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Top view of the Beclere Model P3 "Monomite" showing the volume control wheel (left), the receiver cord jack (center) and the on-off/3 position tone control wheel (right).
 


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The receiver cord had a three-pronged plug with one outside prong larger than the others (left prong) so it could only be plugged in one way. The right jack hole was also correspondingly larger.

 

 

 

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Rear view of the Beclere Model P3 "Monomite" hearing aid showing the pocket clip (upper center) with the name "Beclere" engraved to the left of the clip, and the model "Monomite" engraved to the right.

The hinged battery door comprised the bottom half of the case.

 

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View of the battery compartment of the Beclere Model P3 "Monomite" hearing aid. The black plastic tab (back center) aided in taking the rear "A" battery out. The "B" battery was at the front.

 

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Close-up of battery compartment "floor" of the Beclere Model P3 "Monomite". The instructions indicate this hearing aid took a "Vidor Kalium" 1½ volt "A" battery and a 22½ volt, type B 122 "B" battery.

 

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Close-up of the back of the Beclere Model P3 "Monomite" hearing aid receiver showing how the receiver cord attached to it. Rather than having the usual plug and jack, it had a sliding "plug" shown here sliding in from the right.

 

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Another view of the back of the Beclere Model P3 "Monomite" hearing aid receiver showing the receiver cord "plug" firmly in place.

 

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The Beclere Model P3 "Monomite" hearing aid used a "standard" custom ear mold (left) that snapped on to the nubbin in the center of the receiver (right).

The inscription on the receiver reads: "Lic'd by Brush Crystal Crystals Ld." and then gives patent information.

 


 

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