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!

Home Enter the Museum About Us Contact Us

FREE Subscription to:
Hearing Loss Help
The premier e-zine for people with hearing loss

Your email address
will never be
rented, traded or sold!

Your First Name:
Your E-mail:
Search this site:

 Results per
 page

 all words
 any words


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

Telex Model 200 Vacuum Tube Hearing Aid

Telex, Inc. of St. Paul (Minneapolis), MN manufactured the Telex Model 200 vacuum tube hearing aid in 1949.

The Telex Model 200 vacuum tube hearing aid measured 3¼” by 2⅜” by ¾” (8.3 x 6.0 x 2.0 cm) and weighed 4½ oz. (128 g) without its batteries.

Click picture for larger view

 

 

Front view of the Telex Model 200 vacuum tube hearing aid.

It was a plain, yet elegant-looking, hearing aid with it's silver-colored (possibly silver-plated) case with gold-colored pocket clip that doubled as the microphone grill.


 

Click picture for larger view

 
Top view of the Telex Model 200 vacuum tube hearing aid showing the on/off volume control wheel (left), the 3-position tone switch (center) and the receiver cord jack (right)

Note the "Telex" name on the top of the pocket clip (lower center).

 

Click picture for larger view

 
Close-up of the elegant pocket clip which doubled as the external (pass-through) microphone grill of the Telex Model 200 vacuum tube hearing aid.

 

 

Click picture for larger view

 
Close-up of the "real" microphone grill (a circle comprised of 6 slots) hidden away under the pocket clip of the Telex Model 200 vacuum tube hearing aid.

 

 

Click picture for larger view

 
Rear view of the Telex Model 200 vacuum tube hearing aid showing it's plain back.

 

 

Click picture for larger view

 
The whole back of the Telex Model 200 vacuum tube hearing aid swung open from the bottom to reveal the battery compartment (left) and cover for the tubes (right).

 

 

Click picture for larger view

 
Inside rear view of Telex Model 200 vacuum tube hearing aid. The plastic cover at the top hid the 3 vacuum tubes . This hearing aid had a plastic printed-circuit board.

 

 

Click picture for larger view

 
Close-up of the battery compartment of the Telex Model 200 vacuum tube hearing aid.

This hearing aid took a 15 volt "B" battery such as the Eveready No. 411-E (upper position)  and a 1½ volt "A" battery such as the Eveready 1015E (same size as AA batteries)  (lower position). Note the arrows for correct polarity.

 

Click picture for larger view

 
Close-up of the unusual (and distinctive) plug and jack of the Telex Model 200 vacuum tube hearing aid. Instead of separate prongs, the "prongs" were flat and molded to the plastic center shaft.

 

 

Click picture for larger view

 
Close-up of the receiver cord plug of the Telex Model 200 vacuum tube hearing aid shown here plugged into the jack.

 

 

Click picture for larger view

 
Close-up of the Telex Model 200 vacuum tube hearing aid receiver and plug (shown here unplugged).

 

 

Click picture for larger view

 
Another close-up of the Telex Model 200 vacuum tube hearing aid receiver and plug. Notice how the plug was shaped to fit neatly to the curvature of the edge of the receiver.

 

 

Click picture for larger view

 
Side view of the receiver and ear tip of the Telex Model 200 vacuum tube hearing aid. The ear tip were stock tips rather than tips specifically molded to fit the wearer's ear canal.

 

 

Click picture for larger view

 
The stock tip of the Telex Model 200 vacuum tube hearing aid receiver just snapped onto the receiver (shown here unsnapped).

 

 

Click picture for larger view

 

The Telex Model 200 vacuum tube hearing aid had a green felt pouch to protect it from scratches, etc.

 

 

Click picture for larger view

 

The Telex Model 200 vacuum tube hearing aid in it's felt pouch.

 

 

Click picture for larger view

 
The Telex Model 200 vacuum tube hearing aid in its original case.

 

 

Click picture for larger view

 
Close-up of the Telex logo on the lid, inside the case of the Telex Model 200 vacuum tube hearing aid.

 

 

Click picture for larger view

 

The outside of the the original case for the Telex Model 200 vacuum tube hearing aid.

 

 

 

 

Click picture for larger view

 

(If a larger picture doesn't appear, you may have to turn your pop-up blocker off)