Please i dont want to recieve more emails, i unsuscribed yet. But I continue receiving. Thank you very much to finish bomb mails. Giancarlo pucci -----Mensaje original----- De: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] En nombre de David V. Fansler Enviado el: Martes, 23 de Noviembre de 2004 11:08 p.m. Para: Microcontroller discussion list - Public. Asunto: RE: [EE]: 12C508A with Xtal Won't Oscillate When I used to work with EPROMS, I found a label stock that the back of it looked aluminum. Using this material to cover (and label) the EPROMs, I never had a failure due to light leaking through - check with an office supply store. David V. Fansler S/V Annabelle david@dv-fansler.com www.dv-fansler.com -----Original Message----- From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behalf Of Ed Edmondson Sent: Tuesday, November 23, 2004 7:36 PM To: Microcontroller discussion list - Public. Subject: Re: [EE]: 12C508A with Xtal Won't Oscillate >> Ed Edmondson wrote: >> The window is now covered by light blocking double faced tape. The led is >> on solid. Putting my thumb on the tape causes it to appear to operate >> (led flashes without sync signal). >>> Olin wrote: > Lots of things that appear "light blocking" to us in the visible range are > surprisingly transparent at other wavelenths. Black electrical tape is a > good example. It attenuates visible light heavily (else it wouldn't look black), but doesn't do much at all for IR. <> What do you suggest I use to block the window with? I put two layers of electrical tape over the window, turned off the desk lights and it appears to be trying to work intermittently anyway. Thanks, Ed _______________________________________________ http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist _______________________________________________ http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist _______________________________________________ http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist