Image intensifier tube - hermetic, with inverted image, microchannel electron multiplier plate, included high voltage power supply unit, over-light protection circuit and automatic brightness control, with multialkaline photocathode on input fiber optic window and phosphor screen with yellow-green emission color on fiber optic element. The image intensifier has been designed for low-level range of light in observation device.

General technical specification
Limiting resolution at center, lp/mm, no less..................................	32
Luminance gain, no less...............................................................	30000
Dark background brightness, cd/m², no more.................................	1 x 10-3
Radiant sensitivity of photocathode,  l=850 nm, mA/W, no less......	10
Luminous sensitivity of photocathode, mA/lm...................................	260
Signal-to-noise ratio, no less.........................................................	2.8
Magnification at center..................................................................	1±0.04
Useful cathode diameter, mm........................................................	25
Mass, g, no more.......................................................................	330
Input voltage, V............................................................................	2 - 3.6
Reliability, h.................................................................................	5000