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

Maico Model G "Quiet Ear" Vacuum Tube Hearing Aid

The Maico model G "Quiet Ear" vacuum tube hearing aid was produced by Maico Electronics, Inc. of Minneapolis, MN in 1949. The name "Maico" was derived from the initials of the Medical Acoustic Instrument Company.

It was a 3 vacuum tube one piece model measuring 4⅜” by 2⅜" by 15/16” (11.2 x 6.1 x 2.4 cm). It weighed 4.9 oz. (140 g) without batteries.

The case had a gold-colored plastic front with a gold-colored anodized aluminum back.
 

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Back

 

Front view of the Maico model G "Quiet Ear" vacuum tube hearing aid showing the square microphone grill (upper center) just below the "Maico" name.

On February 8, 1951 this hearing aid sold for $199.00 as shown on this invoice.

Two months later, the Maico dealer went to visit the client as shown in this letter of April 19, 1951.

Hearing aids at this time could be covered by private insurance for repair or replacement. Here is the Repair and Replacement Certificate for this hearing aid.

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Close-up view of the Maico model G "Quiet Ear" vacuum tube hearing aid microphone grill.  The microphone grill consisted of an "X" with a shield in the center.

 

 

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Top view of the Maico model G "Quiet Ear" vacuum tube hearing aid showing the 3-position tone control (H-high, N-normal, L-low) on the left and the volume control/on-off switch on the right. The two-hole receiver cord jack is in the center.

Note that there were actually 3 holes, but the right hole was filled with a plug as it was no longer needed.
 

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The receiver cord plug and jacks of the Maico model G "Quiet Ear" vacuum tube hearing aid shown here unplugged revealing the long pins of the plug.

 

 

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View of the receiver cord plugged into the top of the Maico model G "Quiet Ear" vacuum tube hearing aid.
 

 

 

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Bottom view of the Maico model G "Quiet Ear" vacuum tube hearing aid showing the serial number beginning with a "G" indicating this was a "G" model. Earlier models—serial number in the 8000s did not have the serial number on the bottom, but written inside.

 

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Rear view of the Maico model G "Quiet Ear" vacuum tube hearing aid showing the whole back swung down to reveal the battery compartment.

 

 

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Inside view of the Maico model G "Quiet Ear" vacuum tube hearing aid showing a Mallory RM-3 1.4 volt mercury "A" battery (center) and a Zenith Z-12-G  22½ volt "B" battery (bottom). This battery is equivalent to the Eveready model 412E battery which this aid also used.

Back in 1953 the RM-3 battery sold for 48¢ and the Eveready 412E battery sold for $1.15 according to this invoice.

 

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Front view of the receiver of the Maico model G "Quiet Ear" vacuum tube hearing aid. Around the rim are the numbers "060" (bottom left) and the letters "BO" (bottom right).

 

 

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Rear view of the receiver of the Maico model G "Quiet Ear" vacuum tube hearing aid showing the Maico "M" in the center.

 

 

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View of the receiver and ear mold of the Maico model G "Quiet Ear" vacuum tube hearing aid shown unsnapped. The ear mold snapped on to the nubbin in the center of the receiver.

 

 

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Close-up view of the receiver and receiver cord plug of the Maico model G "Quiet Ear" vacuum tube hearing aid showing them unplugged revealing the equal-sized plug pins.

 

 

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The Maico model G "Quiet Ear" vacuum tube hearing aid could be worn in a shirt pocket, on placed in this pouch that could be pinned to an undergarment.

 

 

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Rear view of the pouch of the Maico model G "Quiet Ear" vacuum tube hearing aid showing the two safety pins (top and bottom) for attaching it to clothing. Typically, women would pin it to the front of their bra.

 

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The Maico model G "Quiet Ear" vacuum tube hearing aid showing how it fitted in the cloth pouch.

 

 

 

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View of the front cover of the  Maico model G "Quiet Ear" vacuum tube hearing aid manual. You can read the whole manual in pdf format here. This 8-page manual covers how to use this hearing aid, how to change the batteries, how to wear it and how to care for it.

 

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View of the front cover of the "Your Guide to Hearing Happiness". Read "Your Guide to Hearing Happiness" in pdf format here. This 40-page Guide is quite a comprehensive booklet on hearing, hearing loss and wearing hearing aids.

 

 

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The Maico model G "Quiet Ear" vacuum tube hearing aid in its original case.

 

 

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The Maico model G "Quiet Ear" vacuum tube hearing aid in its original case with the "wings" folded back revealing their contents.

 

 

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The left pocket of the case of the Maico model G "Quiet Ear" vacuum tube hearing aid contained spare "A" batteries (top) and 3 spare "B" batteries (lower half).

 

 

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Outside view of the  case of the Maico model G "Quiet Ear" vacuum tube hearing aid.

The case measured 8⅝" x 5¾" x 1 15/16" (22.0 x 14.6 x 4.9 cm).

 

 

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The key to the lock on the case of the Maico model G "Quiet Ear" vacuum tube hearing aid. The key was still there after 65 years!

 

 

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The key in the lock of the case of the Maico model G "Quiet Ear" vacuum tube hearing aid.

 

 

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The case of the Maico model G "Quiet Ear" vacuum tube hearing aid came in a paperboard box.
 

 

 

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On the lid of the box someone had written instructions. These read: "Take batteries out when not using hearing aid." and "When putting batteries in, line up arrows on 'B' battery and bottom of hearing aid."

 

 

 

 

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