Audio frequency spectrometer type 2112 serial no. 107346
- Made:
- 1960-1979 in Copenhagen
Audio frequency spectrometer type 2112 serial no. 107346, made in Denmark by Bruel & Kjaer, Copenhagen, range 22Hz to 45kHz
Details
- Category:
- Acoustics
- Object Number:
- 1992-846
- credit:
- Civil Aviation Authority. Chief Scientist