Beat frequency oscillator type 1022 serial no. 125809

Made:
1960-1979 in Copenhagen
maker:
Brüel & Kjær (Sound and Vibration Measurement) A/S

Beat frequency oscillator type 1022 serial no. 125809, made in Denmark by Bruel & Kjaer, Copenhagen, range 20Hz to 20kHz

Details

Category:
Acoustics
Object Number:
1992-845
type:
beat frequency oscillator
credit:
Civil Aviation Authority. Chief Scientis