Last one available that I have for sale.

Tested working Eberline PNC-4 neutron detector. Detector used a Nancy Wood G-10-2 BF3 detector tube with a 1150-1400V plateau. The detector is in excellent condition and has been verified working with an IEC fusion neutron source. The original cable has been replaced with one that has BNC adapters allowing use of the BF3 detector and moderator with another counter, such as a Ludlum model 12, the moderator/detector can be removed from the counter by removing the 4 screws at the bottom of the counter case. Counter section has small dent on side/bottom and the letters "PSD" engraved in the side of the case but neither effects operation.

Only Eberline PNC-4 neutron detector is included in this auction(equipment/check sources are not).

Video of counter detecting neutrons with tube in moderator
https://www.youtube.com/watch?v=bPVml5oZvlY

Test with tube removed from moderator showing no detection of non-thermal neutrons
https://www.youtube.com/watch?v=8VqQu2hQCSg&feature=youtu.be
I will be out of town Oct 30 to  Nov 4th, shipping will be delayed if items are purchased during these dates.