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This is a Bruel Kjaer 2650 Precision Condition Amplifier. This unit is in good shape, powers up, but is untested. I am selling this unit AS-IS with no warranty due to my inability to test it.
Shipping in the USA is $30
Bruel & Kjaer Type 2609 Measuring Amplifier, 20-20,000Hz.
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Bruel Kjaer Sound Level Calibrator Type 4230 1000Hz 94db W/ Instructions
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New No Box Bruel Kjaer AO-0531-D-010 Coaxial Cable Single-Screened PVC T8-4
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