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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