Collection

Precision sound level meter

Made:: 1960-1979 in Copenhagen and Denmark

manufacturer:: Brüel & Kjær (Sound and Vibration Measurement) A/S

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Precision sound level meter type 2209 serial no.595204, fitted with half-inch condenser microphone type 4163 serial no.580386, made in Denmark by Bruel & Kjaer, Copenhagen, nominal range 20db to 140dB on rotary switch and -10db to +10db on meter, complete with windshield, flexible extension rod type UA0196, and box for microphone

Details

Category:: Acoustics

Object Number:: 1992-849

type:: sound-level meter

taxonomy:

furnishing and equipment
measuring device - instrument

credit:: Civil Aviation Authority. Chief Scientis

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