On Fri, 8 May 1998 15:53:20 PDT, you wrote: >While it's easy to make your own x-rays, I think I've got to agree with >the guy who pointed out that making the efficiently enough to provide >the energy density (Watts/area) necessary to erase an eprom might be well >beyond amateur capabilities, even if it were possible to erase them that >way. I think this number (W/cm^2) is published somewhere, and I can't >think of any particular reason why the number would be smaller for xrays >than for UV. We all know that it takes pretty intense UV to do the erasing. >If you've got a little 4W quartz tube, your chip has be be very close to >erase in reasonable time... > >BillW There's a guy who has info on DIY x-rays, with some x-ray photos here: http://www.mathematik.uni-marburg.de/~kronjaeg/hv/index.html ____ ____ _/ L_/ Mike Harrison / White Wing Logic / wwl@netcomuk.co.uk _/ L_/ _/ W_/ Hardware & Software design / PCB Design / Consultancy _/ W_/ /_W_/ Industrial / Computer Peripherals / Hazardous Area /_W_/