France1978:
Vintage Sonotone Model 200 Transistor (Body) Hearing Aid, Polished Aluminum Body, Measures 3 Inches x 1.75 Inches, 4 Transistors, Made In USA, Circa 1956
France1978:
Vintage Advertising For Sonotone Carbon And Vacuum Tube Hearing Aids In The Pittsburgh Press Newspaper, November 5, 1939
France1978:
Vintage Sonotone Model 600 Transistor (Body) Hearing Aid, 5 Transistors, Made In USA, Circa 1967
France1978:
Vintage Sonotone Model 300 Transistor (Body) Hearing Aid, Made In USA, Circa 1964
France1978:
Vintage Sonotone Model 1000 Golden Transistor (Body) Hearing Aid, Rear Battery Compartment, Made In USA, Circa 1961
France1978:
Vintage Sonotone Model 1000 Golden Transistor (Body) Hearing Aid, Made In USA, Circa 1961
France1978:
Vintage Sonotone Model 36 Behind-the-Ear (BTE) Transistor Hearing Aid, Made In USA, Circa 1972
France1978:
Vintage Sonotone Model 25 Mighty Wisp Behind-The-Ear (BTE) Transistor Hearing Aid, Made In USA, Circa 1963
France1978:
Vintage Sonotone Model 200 Transistor (Body) Hearing Aid, Polished Aluminum Body, 4 Transistors, Made In USA, Circa 1956
France1978:
Vintage Sonotone Model 910 Vacuum Tube (Body) Hearing Aid, Made In USA, Circa 1949
France1978:
Vintage Sonotone Model 910 Vacuum Tube (Body) Hearing Aid, 3 Sub-Miniature Vacuum Tubes, Made In USA, Circa 1949
France1978:
Vintage Sonotone Model 910 Vacuum Tube (Body) Hearing Aid, Inside View, 3 Sub-Miniature Vacuum Tubes, Made In USA, Circa 1949
France1978:
Vintage Sonotone Model 1010 Hybrid (2 Vacuum Tubes And 1 Transistor) Hearing Aid. The First Commercial Product In The World To Use Transistors, Made In USA, Introduced December 29, 1952
France1978:
Vintage Sonotone Model 1010 Hybrid (2 Vacuum Tubes & 1 Transistor) Hearing Aid. The First Commercial Product To Use Transistors, Made In USA, Introduced December 29, 1952
France1978:
Vintage Sonotone Model 920 Vacuum Tube (Body) Hearing Aid With Earmold, Made In USA, Circa 1949
France1978:
Vintage Newspaper Advertising For The Sonotone 1010 Hearing Aid In The Kokomo Indiana Tribune, October 3, 1953
France1978:
Vintage Sonotone Model 1010 Hybrid (2 Vacuum Tubes & 1 Transistor) Hearing Aid. The First Commercial Product In The World To Use Transistors, Made In USA, Introduced December 29, 1952
France1978:
Vintage Sonotone Model 1010 Hybrid (2 Vacuum Tubes & 1 Transistor) Hearing Aid. The First Commercial Product In The World To Use Transistors, Made In USA, Introduced December 29, 1952
France1978:
Vintage Sonotone Model 925 Vacuum Tube (Body) Hearing Aid, Made In USA, Circa 1950
France1978:
Vintage Sonotone Model 200 Transistor (Body) Hearing Aid, Polished Aluminum Body, 4 Transistors, Made In USA, Circa 1956
France1978:
Vintage Sonotone Model 200 Transistor (Body) Hearing Aid - View Of The Battery Compartment With A Sonotone Battery In Place
France1978:
Vintage Sonotone Model 900 Vacuum Tube (Body) Hearing Aid, Made In USA, 3 Subminiature Vacuum Tubes, Circa 1947
France1978:
Vintage Sonotone Model 600X Transistor (Body) Hearing Aid, Made In USA, Circa 1967
France1978:
Vintage Sonotone Model 300 Transistor (Body) Hearing Aid, Made In USA, Circa 1964
France1978:
Vintage Sonotone Audicle Carbon Hearing Aid, Model 451, Made In USA, Circa 1937
France1978:
Vintage Sonotone Audicle Carbon Hearing Aid, Model 451, Made In USA, Circa 1937
France1978:
Vintage Sonotone 1200 Transistor (Body) Hearing Aid, 4 Transistors, Aluminum Case, Made In USA, Circa 1954
France1978:
Vintage Sonotone 1200 Transistor (Body) Hearing Aid, 4 Transistors, Aluminum Case, Made In USA, Circa 1954
France1978:
Vintage Sonotone Model 600 Transistor (Body) Hearing Aid, 5 Transistors, Made In USA, Circa 1967
France1978:
Vintage Sonotone 4-Transistor (Body) Hearing Aid With Original Box, Model 200, Circa 1956
