Save a copy. Now. [EE]:: Optimal Finned heatsinks 1986 DEC report. 72 pages https://www.hpl.hp.com/techreports/Compaq-DEC/WRL-86-4.pdf Russell ht Ken Mardle --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .