In message <342EAEFA.500ED4CE@ilink.nis.za>, Eric van Es writes >dlions@acs.itd.uts.edu.au wrote: > >> Hey dudes! >> >> Has anyone considered using arc welders as a source of strong UV >> to erase eproms. I don't mean a full 50kg arc welder, but using the same >> concept of the spark it produces, and the UV from it. >> > >[Snip] > >> I don't really care about EPROM's but I am thinking of investing in >> a window version '74 and was hoping to avoid buying an eraser, and waiting >> for the chip to erase. Obviously i would not risk a '74 just to save a >> little time though. Is what i am doing safe? >> > >I think that in the long run your welding rods will be more expensive than the >UV eraser. I'm still searching for one of those lights thay use at the bank to >check the money for forgery.... should be cheapish. > You need a short wavelength UV source, like a germicidal lamp. Those note checking lamps aren't suitable. Suitable lamps are available in the UK for about #8. Leon -- Leon Heller: leon@lfheller.demon.co.uk http://www.lfheller.demon.co.uk Amateur Radio Callsign G1HSM Tel: +44 (0) 118 947 1424 See http://www.lfheller.demon.co.uk/rcm.htm for details of a low-cost reconfigurable computing module using the XC6216 FPGA