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.

 

Body Type Transistor Hearing Aids

Dahlberg D-6 "Standard" Hearing Aid

The Dahlberg D-6 "Standard" all transistor hearing aid was produced by Dahlberg Electronics, Inc. of Minneapolis in 1953. It was enclosed in a gold anodized case measuring 2½" x 1¾" x ⅞". This hearing aid weighed just 4 oz. with its RM-1 mercury battery.

This D-6 "Standard" hearing aid used 2 Raytheon 784s and one Raytheon 785 transistors.

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Back

 
A single 1.4 Volt RM-1 mercury battery powered this hearing aid. This picture shows the back opened revealing the battery compartment (bottom left).


 

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The Dahlberg D-6 in its original case.

 


 

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