Precision sound level meter type 2209 serial no.595204
- Made:
- 1960-1979 in Denmark and Copenhagen
- manufacturer:
- Brüel & Kjær (Sound and Vibration Measurement) A/S
This image is released under a CC BY-NC-SA 4.0
Licence
Buy this image as a print
BuyLicense this image for commercial use at Science and Society Picture Library
LicensePrecision sound level meter type 2209 serial no
Science Museum Group
© The Board of Trustees of the Science Museum
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
- credit:
- Civil Aviation Authority. Chief Scientis
