Hi, I finally found ya,I am so useless with computers they`er so alien to me,But hay what a great tool.Firstly thank`s for your imput on my Olympus khs binocular microscope,I will try to send pictures on the khs, as soon as i can work out how i do this with me Babs camera,and then hopefully you may be able to give a more accurate date for the khs ,while I'm here, would you have any idea where to find a bulb for this microscope is still made please, the bulb is a 240v 25w 50-60hz tungston half mirror and made in Tokyo i think,I tried everywhere with no luck,if you don`t have any idea, is there anything i could do to convert the lamp holder to take a different bulb,thankyou again,Brum