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

Bruel & Kjaer B&K Type1617 Bandpass filter.

Bruel & Kjaer Type 3107 Generator Module from 2816 Data Acquisition Unit

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

2 Bruel & Kjaer Type 4220 Pistonphone Sound Calibration Tools Untested Org Boxes

Bruel and Kjaer vibration sensor preamplifier, type 1606

Bruel & Kjaer Type 3032A Input/Output Module with Type 7533 LAN Interface Module

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