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

Bruel & Kjaer Type 3015 25 kHz Input 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 B&K Type1617 Bandpass filter.

Bruel & Kjaer AO 0587-d-030 cable

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

Bruel and Kjaer vibration sensor preamplifier, type 1606