NSG-66

The NSG-66 is a device of east German origin. It is powered by a high voltage transformer box. The device can be mounted on certain east German helmets that have a specialized mounting bracket.[1] The device utilizes BW18D (BW presumably standing for Bildwandler or image intensifier in english) image intensifiers of indigenous east German production. The device has a field of view of 30° and a magnification of 1x. The focus is set to infinity (unlike the PNV-57). [2] The device was meant to be used by vehicle drivers, and thus is quite uncommon.[3] The device is (supposedly) manufactured by Karl Zeiss Jena. [4]