On 8/6/08, Alan B. Pearce wrote: > >It would be tricky. The stuff only really tracks changes between a > >field pointed at the paper, and a field paralell to it. YOu can see > >this in a photo from my site... > > Can one still get spray on mag tape developer? I remember we used to get it > from Burroughs, but I think they were marketing someone elses product under > their own name. That was great stuff to use for looking at magnetic fields. Wow, I didn't even know this stuff existed! http://www.q-card.com/pdf/Developer%20sales%20sheet%20rev2.pdf Yes, you still can. -Adam -- EARTH DAY 2008 Tuesday April 22 Save Money * Save Oil * Save Lives * Save the Planet http://www.driveslowly.org -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist