I recently purchased a Litton MK 4 laser rangefinder, but do not have a operators manual. I would like to find someone who could copy a manual for me. It is an amazing unit. I also have a russian military unit that is broken, and I cannot find anyone who can work on these. I have tried Newcon and Bills electronics, both in Canada, but no luck. Bill says he could maybe do some good if he had a wiring diagram. Can anybody help me?