Kenosha Reuse Discussion Board   >   NORTH CHICAGO,IL   >   Bruel & kjaer b&k ½ inch microphone preamp 2639

Bruel & kjaer b&k ½ inch microphone preamp 2639


This is a Br el & Kj r legacy Microphone Preamp for 1/2 inch microphones, type number 2639. It will work with any inch non-polarised microphone such as a 4165, 4190 or 4191 and a suitable B&K microphone power supply or amplifier. This is the shorter (later) legacy B&K microphone plug. It would also work with the older preamplifier power supplies but would need the extension piece.
The unit is is in pristine condition in fact it looks totally unused. It even comes with the original dust cap on the microphone mount. I have tested the preamplifier with one of my microphones (a 4191) and it worked perfectly returning the correct calibration for the microphone within 0.2dB.



Bruel & kjaer b&k ½ inch microphone preamp 2639