1924: Early Radioear
The Radioear Corporation started as E.A. Myers and Sons in the early 1920s. It was founded by E.A. Myers, a practicing attorney who started losing his hearing as a young man. As time passed, his impairment worsened, which adversely impacted his attorney practice. He realized he would need to seek help, or retire from his business. Because Myers did a considerable amount of legal work for manufacterers, he became interested in the manufacturing and production of hearing aid devices. He started to experiment with several hearing devices around the world, but none of them helped.
Myers sought relief from his hearing impairment and started work to develop a hearing aid using radio tubes for amplification, inspired by his watching the development of the radio tube. His first working device weighed 135 pounds. He placed one in his office and one in his home. Soon, he was able to get back to work in the same capacity as before.
At this time, Myers had no intention of producing hearing aids commercially. However, more and more of the deaf community, such as his old lip-reading teacher and former business partners with hearing impairment, requested that he build one for them as well. Eventually, the superintendent of the Western Pennsylvania School for the Deaf came to his office to see the instrument. This led to Myers’ demonstrations of his device in nearly every state and public school for the deaf.
Myers and his sons were catapulted into the hearing aid business, installing hearing aid sets in schools for the deaf, churches, theaters, and lecture rooms across the country.
“The Radioear Voice No. 35”. Radioear Corporation Records, 1900-1990, AIS.2023.21, Archives of Industrial Society, Archives & Special Collections, University of Pittsburgh Library System, Box 38, Folder 31.

The Radioear Laboratory in Peters Township, a suburb of Pittsburgh
“Hearing Aid Company to Open Laboratory in Peters Township”. Radioear Corporation Records, 1900-1990, AIS.2023.21, Archives of Industrial Society, Archives & Special Collections, University of Pittsburgh Library System, Box 40, Folder 10.
The First Experimental Radioear
The original Radioear was designed in 1924.
In 1926, Radioear sold its first commercial hearing aid bearing its name.
The original Radioears were installed in homes for personal use, and were not commercially sold.

The Original Radioear
“Production Model Original Radioear”. Radioear Corporation Records, 1900-1990, AIS.2023.21, Archives of Industrial Society, Archives & Special Collections, University of Pittsburgh Library System, Box 46, Folder 56.
In the 1920’s, hearing aids were non-portable devices. The Original Radioear could blend into a living room seamlessly fitting in with a home environment and providing secondary utility.

The Original Radioear in a family's living room
“1930-1934, 1930-1934". Radioear Corporation Records, 1900-1990, AIS.2023.21, Archives of Industrial Society, Archives & Special Collections, University of Pittsburgh Library System, Box 46, Folder 57.
Group Hearing Aids
Models like the Original Radioear were prohibitively expensive for widespread individual use. A majority of Radioear marketing focused on advertising to institutions rather than individuals. Churches, schools, and concert halls were all targets of advertising during this era.
Radioear sold systems designed for anywhere from 10-200 people.
In the advertisement to the right, note that it mentions that the wires are "carefully concealed" to make sure they do not impede patrons' movement.

A magazine advertisement for a group hearing aid
“Radioear Group Hearing Aid”. Radioear Corporation Records, 1900-1990, AIS.2023.21, Archives of Industrial Society, Archives & Special Collections, University of Pittsburgh Library System, Box 40, Folder 10.
Theater Assistive Hearing Systems

Large systems like the one pictured to the left were used in schools for the deaf, concert halls, and theaters—oftentimes installed directly into buildings’ infrastructure. The amplifier box controls could be adjusted to suit the acoustics of the space it was installed in, then concealed behind a desk or pulpit.
This device used crystal microphones to feed sound output to either bone or air conduction receivers, which the user could hear from.
If you look closely, you can see the volume dials on the back of each chair. The user adjusted the sound input with the dial, depending on their individual hearing needs.
An early Radioear hearing aid system built into a theater
“c. 1924-1982 Installations c. 1928-1930, 1928-1930”. Radioear Corporation Records, 1900-1990, AIS.2023.21, Archives of Industrial Society, Archives & Special Collections, University of Pittsburgh Library System, Box 46, Folder 55.
Sources
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“The Radioear Voice No. 35”. Radioear Corporation Records, 1900-1990, AIS.2023.21, Archives of Industrial Society, Archives & Special Collections, University of Pittsburgh Library System, Box 38, Folder 31.
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“Radioear Group Hearing Aid”. Radioear Corporation Records, 1900-1990, AIS.2023.21, Archives of Industrial Society, Archives & Special Collections, University of Pittsburgh Library System, Box 40, Folder 10.