> -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Ron > D'Eau Claire > Sent: Tuesday, August 10, 2004 11:34 PM > To: 'Elecraft Mail list' > Subject: RE: [Elecraft] SMT kits and Elecraft > > Wayne wrote: > ...it can require > a lot of practice, patience, steady nerves, unimpaired > vision, and specialized tools. > --- > > Good points, especially when it comes to identifying parts. > My experience has been mostly in fixing something. I replace > one or two SMDs and I'm done. > But reading the identifying marks on some of them darn near > requires a microscope!
Ron You usually do not get identification marks on chip capacitors, melf/SOD80 diodes or SOT23 parts (transistors etc) This is what I see as the biggest issue to SMD kits as there is no visual way for the builder to validate he has the correct parts in the correct place so its all down to getting these in the right place first time. This might seem to contradict some of my earlier comments in some ways but of read in context it only means you need to concentrate a little harder and employ a slightly different methodology for the assembly of the 2 technologies. I already know 1 builder who had some problems that ended up being a misplaced part, a very easy thing to do. The part size chosen for a kit will make a big difefrence in parts managability but will make the inventory for compiling the kit for sale as you cannot sequence the parts as easily on tape as on a bandolier. John > Building a whole rig from a box (or thimblefull) of 100 or > 200 such devices might be a bit more of a challenge... > > Also, I cringe when I find a dense board mixed with > through-hole stuff. The big parts almost always make it > really tough and time-consuming to work with SMDs using > simple, non-specialized tools. > > Ron AC7AC > > > _______________________________________________ > Elecraft mailing list > Post to: Elecraft@mailman.qth.net > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com > _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
