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

Siemens Model 40 "Euroton" Transistor (Body) Hearing Aid

The Siemens Model 40 (Euroton) transistor hearing aid was manufactured by/for Siemens A.G. of Germany in 1975 although it was physically made in Brazil.

It measured 2 13/16" x 1¾" x ¾" (7.2 x 4.5 x 1.9 cm) and weighed 2½ oz. (70 g) with battery.

 

 

Click picture for larger view

 

Back

 
Top view of the Siemens Model 40 (Euroton) transistor hearing aid showing the 1-9 volume control on the left, the square microphone grill in the middle and the MT (microphone/t-coil together, M (microphone only), T (t-coil only) and O (off switch) on the right.

 

Click picture for larger view

 
The Siemens Model 40 (Euroton) transistor hearing aid showing the battery compartment which swung open to the rear from the left side.

This hearing aid used a standard AA size 1½ volt battery.

 

Click picture for larger view

 
Bottom view of the Siemens Model 40 (Euroton) transistor hearing aid showing the the model number (40) and place of manufacture (Brazil).

The adjusting screw was probably for setting the tone to the wearer's needs.

 

Click picture for larger view

 
The receiver and cord of the Siemens Model 40 (Euroton) transistor hearing aid. Note that the ear tip is a stock tip and not a specifically molded ear mold that was typically used on hearing aids of the day. The cord had a two-pronged plug at each end.

 

 

 

Click picture for larger view

 

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