Bruel & Kjaer Type 3017 Sound Intensity Module from 2816 Data Acquisition Unit

Bruel & Kjaer Type 3107 Generator Module, B&K

Bruel & Kjaer Type 3015 25 kHz Input Module from 2816 Data Acquisition Unit

Bruel & Kjaer 1606 Vibration Preamplifier w/ Probe

Bruel & Kjaer XC 1968 Power Control Board from 2816 Data Acquisition Unit

*For Parts* Bruel & Kjaer Type 4220 Pistonphone Sound Calibration Tool

BRUEL & KJAER 2231