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.

 

Body Type Transistor Hearing Aids

Olson Transistor (Body) Hearing Aid

This Olson transistor hearing aid was the only Olson-branded hearing aid put out by Olson Electronics of Akron, OH between 1960 and 1962.

Since it was the only hearing aid they produced, it had no model number.

The Olson hearing aid was like the Cortiton Model TH-58.

The Olson measured 2˝" x 1⅝" x ⅝" (6.4 x 4.1 x 1.1 cm) and weighed 1.8 oz (50 g) without the battery. It had a gold anodized aluminum case over a black plastic chassis.

Click picture for larger view

 

Back Next

 

Top left view of the Olson hearing aid showing the on-off switch with integrated three-position tone control (L - low, M - medium and H - high tone emphasis).

 

 

Click picture for larger view

 
The right view of the Olson hearing aid showing the 1-7 volume control wheel.

 

 

Click picture for larger view

 
Front view of the Olson hearing aid showing its flattened diamond-shaped mic grill (center) and the Olson name stamped at the bottom.

 

 

Click picture for larger view

 
Top view of the Olson hearing aid showing the rather unusual round 3/32" (2.5 mm) earphone jack (center) and plug at a time when most hearing aids used a two-pronged plug and jack.

The pocket clip, which surrounded the earphone jack, could be unscrewed and mounted so it was on the back instead of the front if so desired.

 

Click picture for larger view

 
Note that the Olson hearing aid used a cheap generic receiver/ear mold like was used for transistor radios at that time rather than custom-molded ear molds used by most hearing aids of the day.

 

Click picture for larger view

 
View of the inside front of the Olson hearing aid showing the large microphone (upper center) and the 4 round transistors to the right and below it. The tone knob is at the upper right and volume control knob at the lower right.

 

Click picture for larger view

 
View of the inside back of the  Olson hearing aid showing the various resistors (red) and capacitors (grey) that made up the electronics of this hearing aid.

 

 

Click picture for larger view

 
View of the inside back of another Olson hearing aid showing changes in the components made in succeeding years.

 

 

Click picture for larger view

 
The back of the Olson hearing aid showing the hinged swing-down battery door across the bottom.


 

 

Click picture for larger view

 
Bottom view of the Olson hearing aid showing the battery compartment with the spring-loaded battery door held open.

The Olson hearing aid took a 1.4 volt size 401 or "N" mercury battery.

 

Click picture for larger view

 
Engraved in the bottom left corner of the battery door are the words, "Made in Japan".

 

 

Click picture for larger view

 

The Olson hearing aid in its original case.

 

 

Click picture for larger view

 

Outside view of the case of the Olson hearing aid.

 

 

 


 

Click picture for larger view

 

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