What ever happened to the old.."magnifying lens trick " not a pin point ... but a little wider than the window? Take the chip ...... antistatic foam on a piece of card board.......make mounting for lens.. rotate often........well done in 2 hrs............anyone cooking out?......will supply beef ribs.. -----Original Message----- From: Robert A. LaBudde To: PICLIST@MITVMA.MIT.EDU Date: Sunday, September 26, 1999 10:12 AM Subject: Re: Erase 12c509 with Sun >At 09:09 AM 9/26/99 +1000, Paul wrote: >>> You could possibly filter the IR with a quartz window and then >>> collimate the sunlight with a lens. >> >> Now where would you get such a thing? A solid fuzed quartz lens? > >Sure. Take a large piece of quartz, and grind it down with carborundum or >silicon carbide grit. > >A simpler method would be to mount the eprom in a parabolic reflector. >Perhaps an old headlight reflector or large flashlight reflector would >work. Or you could make one out of aluminum foil. > > >================================================================ >Robert A. LaBudde, PhD, PAS, Dpl. ACAFS e-mail: ral@lcfltd.com >Least Cost Formulations, Ltd. URL: http://lcfltd.com/ >824 Timberlake Drive Tel: 757-467-0954 >Virginia Beach, VA 23464-3239 Fax: 757-467-2947 > >"Vere scire est per causae scire" >================================================================ >