France1978: A Pair Of Vintage Eveready Mini-Max 22.5 Volts Batteries For Use In Hearing Aids & The Regency TR-1 Transistor Radio, No. 412E, Circa 1950s
France1978: Vintage Eveready Mini-Max 22.5 Volts B Battery For Use In Hearing Aids & The Regency TR-1 Transistor Radio, No. 412E, Circa 1950s
France1978: Vintage Eveready Mini-Max 22.5 Volts Battery For Use In Hearing Aids & The Regency TR-1 Transistor Radio, No. 412E, Circa 1950s
France1978: A Trio Of Vintage Eveready Mini-Max 22.5 Volts Batteries For Use In Hearing Aids & The Regency TR-1 Transistor Radio, No. 412E, Circa 1950s
France1978: Vintage Maico (Medical Acoustic Instrument Company) Model UD Atomeer Vacuum Tube (Body) Hearing Aid (Back View), 3 Vacuum Tubes, Shown With Its RM-4 Mercury A Battery, Made In USA, Circa 1947
France1978: Vintage Beltone Mono-Pac Model L (Lyric) Vacuum Tube (Body) Hearing Aid (Battery Compartment), 3 Vacuum Tubes, Made In USA, Circa 1952
France1978: Vintage Zerad (Zenith Radio Corporation) Hearing Aid Battery Tester, Used To Test The Voltages Of Both A And B Batteries of One-Piece Hearing Aids, Circa Late 1940s-Early 1950s
France1978: Vintage Sterling Pocket Voltmeter, No. 31A Hearing Aid Battery Tester, Made In USA
France1978: Vintage Zenith Crusader Transistor (Body) Hearing Aid With Box, Battery & Earmould, Gold-Colored Anodized Aluminum Case, 4 Transistors, Made In USA, Circa 1955
France1978: Vintage Beltone Mono-Pac Model S Symphonette Vacuum Tube (Body) Hearing Aid, View Of Battery Compartment, 3 Sub-Miniature Vacuum Tubes, Made In USA, Circa 1948
France1978: Vintage Telex Voltmeter For Testing Hearing Aid Batteries, Telex Incorporated, Telex Park, Minneapolis, Minnesota, Circa 1950s
France1978: Vintage Eveready Hearing Aid Battery Checker For Spin Paks, Made In USA, Circa 1971
France1978: Vintage Sonotone Model 200 Transistor (Body) Hearing Aid - View Of The Battery Compartment With A Sonotone Battery In Place
France1978: Vintage Telex Voltmeter For Testing Hearing Aid Batteries, Telex Incorporated, Telex Park, Minneapolis, Minnesota, Circa 1950s
France1978: Vintage Zerad (Zenith Radio Corporation) Hearing Aid Battery Tester, Used To Test The Voltages Of Both A & B Batteries of One-Piece Hearing Aids, Circa Late 1940s/Early 1950s
France1978: Vintage Sonotone Hearing Aid Battery Tester, Model AB-2, For Testing A & B Batteries, Made In USA
France1978: Vintage Sterling Pocket Voltmeter, No. 31A Hearing Aid Battery Tester, Made In USA
France1978: Vintage Beltone Mercury Hearing Aid Batteries, No. 8401, "Beltone - When a Hearing Aid Will Help"
France1978: Vintage Package Of Eveready A Batteries For Hearing Aids, No. 1015E, Made In USA, Circa
France1978: Vintage Beltone Model F Futura Transistor (Body) Hearing Aid (Battery Compartment), Produced by Beltone Electronics Corporation of Chicago, IL, Circa 1963
France1978: Vintage Beltone Mono-Pac Model M Melody Vacuum Tube (Body) Hearing Aid In Presentation Case, 3 VacuumTubes, Made In USA, Circa 1950