I seem to remember a long time ago, my employer (a govt agency) used to have a line of text, in copper, that looked like "Mod No. 1 2 3 4 ....". When a mod was done on the board, the number could be scratched off, either with a knife or even just burnt off with a soldering iron. The circuits were *always* kept current with mod numbers. But if you have a 100 on the bench, the one you want is invariably the last one you look at ;-) Regards, David ----- Original Message ----- From: "Vasile Surducan" To: "Microcontroller discussion list - Public." Sent: Wednesday, May 10, 2006 1:58 AM Subject: Re: FW: [EE] PCB serial number > On 5/7/06, Wouter van Ooijen wrote: >> > Can you drill holes using a small drill ? Or solder bridges ? >> >> I did not think of drilling. Nice idea. >> >> For now I'll try solder drops, see attachment. > > Solder drops looks a better ideea than drilling. > Both have a major disatvantage when you have on your table 100 boards > or more and search for a particular one... > > cheers, > Vasile > >> >> Wouter van Ooijen >> >> -- ------------------------------------------- >> Van Ooijen Technische Informatica: www.voti.nl >> consultancy, development, PICmicro products >> docent Hogeschool van Utrecht: www.voti.nl/hvu >> >> >> >> -- >> 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