On Aug 21, 2008, at 9:09 PM, Vitaliy wrote: > peter green wrote: >> Peter Loron wrote: >>> I've got some things I'm tinkering with now that will use mixed SMD >>> and thru-hole components. I've used some of the SMD adapters (SOT-23 >>> to DIP, etc), but those aren't really practical once you get >>> beyond a >>> few components and are sorta klunky. >>> >>> Any pointers to good mixed type prototype boards? I've been >>> looking at >>> this unit from SparkFun, but I don't need the power supply + USB >>> stuff >>> >> One possibility is to either use adaptors or readymade demo boards to >> check out the chips suitability then go straight to PCB from >> there. Of >> course the practicality of this depends on your confidence, how the >> time/money tradeoff works out for you and how quickly you can get >> PCBs >> made (at uni I can generally put the designs in to our departments >> PCB >> facility one day and pick up the boards the next). > > I agree with Peter Green. I think that even for hobby applications, > it makes > sense to prototype the parts of the circuit you aren't too sure > about, then > order (or build) the PCB. Lately we've had good success with Advanced > Circuits' "barebones" PCBs. It's possible to place the order on > Monday, and > get it by Friday -- for under $100. If you're in a real big rush, > you can > pay for overnight shipping and get the boards in 2 or 3 days. > > https://www.barebonespcb.com/!BB1.asp > > Even if you mess up the first time, cuting traces and greenwiring the > changes is easier and a lot less frustrating than trying to use SMT > parts on > a protoboard. And if time to market is of any concern, this is the > way to > go -- you may end up with a fully functioning board the first time, > or make > a couple of small changes and move to production within a couple of > weeks > (since you have the gerbers already). > > Sincerely, > > Vitaliy Thanks for the responses. I guess I'll just push through the rest of the PCB design, then. -Pete -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist