>Jon Elson wrote..... If the $100 is for a home-made milled PCB you put together yourself, it is quite possible, but that will take a lot of time to make the board, assemble and debug.>
That's fine for a commercial unit Jon but I'm sure I'm not the only person who would love to find an open source schematic or design which we could make ourselves using components we already have or can easily salvage from other kit. For example, the DSPIC design is great and well documented as far as it goes and I know I could build it with little difficulty, however, as far as I can see, the PIC chip itself is only available direct from Microchips who want ten times the cost of the chips to send two or three to the UK and the OPA549 chip, while available over here is pretty expensive. Now I'm no expert but I'm sure it should be possible to use an alternative PIC which is more readily available ( maybe a 16F877?) and substitute a handful of the FETS and other discrete components in my junk box for the OPA549 - if only I knew how.... -- Best wishes, Ian ____________ Ian W. Wright Sheffield UK "The difference between theory and practice is much smaller in theory than in practice..." ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users