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Pair of 'Sonovalve' ear defenders, supplied by Racal Safety Ltd. and made by Amplivox Limited, Oxfordshire, England, 1978-1983

Pair of 'Sonovalve' ear defenders

Protective Clothing

1978-1983

Amplivox 115 audiometer with earphones, used for e

Psychology, Psychiatry & Anthropometry

c.1977
Hearing aid, serial no. NMTT, in original box, by Amplivox, England, 1960-1970

Hearing aid, serial no. NMTT, in original box, by

Audiology
Diagnostic Audiometer, model 103, with felt cover, and accessories in top opening compartment, by Amplivox, London, England, 1965-1972.

Diagnostic Audiometer, model 103

Audiology

1965-1972
Transistorised speech training hearing aid, type 16650, by Amplivox, London

Transistorised speech training hearing aid, type 16650

Audiology
Hearing aid, "Hi-fi", by Amplivox, England, 1960-1970

Hearing aid, "Hi-fi", by Amplivox, England, 1960-1

Audiology
Audiometer, by Amplivox, London, England, c. 1965

Audiometer, by Amplivox, London, England, c. 1965

Audiology

1965
Audiometer for testing hearing, in wooden case, by Amplivox Ltd., London, 1950s

Audiometer for testing hearing, in wooden case, by

Audiology

1951-1960
Speed training hearing aid, professional model, by Amplivox, London

Speed training hearing aid, professional model

Audiology
Audiometer, model 70, with leather and canvas cover, and accessories in lockable back compartment, by Amplivox, London, England, 1958-1968.

Audiometer, model 70

Audiology

1958-1968
Audiometer, model 90, built into front opening carrying case, with accessories, by Amplivox, London, England, 1966-1973.

Audiometer, model 90

Audiology

1966-1973
Audiometer, model 83, with felt cover, and accessories in lockable front compartment, by Amplivox, London, England, 1962-1969.

Audiometer, model 83

Audiology

1962-1969
Clinical Audiometer, model 84, with felt cover, and accessories in top opening compartment, by Amplivox, London, England, 1962-1969.

Clinical Audiometer

Audiology

1962-1969
Audiometer, model 51, in carrying case with accessories, by Amplivox, London, England, 1958-1968.

Audiometer, model 51

Audiology

1958-1968
Audiometer, model 115, built into carrying case, with accessories, by Amplivox, London, 1969-1972.

Audiometer, model 115

Audiology

1969-1972
Audiometer, model 215, built into carrying case, with accessories, byAmplivox, London, England, 1974-1977.

Audiometer, model 215

Audiology

1974-1977
Audiometer, model 210, built into carrying case, by Amplivox, London, England, 1974-1977.

Audiometer, model 210

Audiology

1974-1977
Amplifying equipment for teaching the hearing impaired, by Amplivox, London, England, c. 1970

Amplifying equipment for teaching the hearing impa

Audiology

1970
Audiometer, model 82, with felt cover, and accessories in lockable front compartment, by Amplivox, London, England, 1962-1969.

Audiometer, model 82

Audiology

1962-1969
Pair of headphones – part of Zero-Gradient Aural Thermometer system - invented by Dr. Richard Sloan, England and made by Amplivox Ltd., Oxfordshire, England, 1975-1985. This Zero-Gradient Aural Thermometer system was used by Dr. K. J. Collins, England.

Pair of headphones, part of Dr. Richard Sloan's Zero Gradient Aural Thermometer system

Laboratory Medicine

1975-1985
Charger unit, Racal Amplivox product in original carton, by Racal Safety Limited, for airstream protective helmet with face mask and filtered air ventilating system, 1980 (see note)

Charger unit, Racal Amplivox product in original carton

Protective Clothing

1980