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

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Beat frequency oscillator type 1022 serial no. 125809

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