| Electronics > Projects, Designs, and Technical Stuff |
| Yet another resistance decade box |
| << < (21/87) > >> |
| bitseeker:
PeterZ posted two layouts, 1206 and 0804. I'm not sure which size Fortran used for the group buy. Note that 0402 is 1mm long, rather than 0.1mm. The ones for this kit will be 2-3x larger than that. You should be fine, but you may want to do some practice on a junk board first. I'm not sure what "normal" is. I see the imperial units used more often in discussion. Datasheets often list both, such as the Vishay one for the resistors Fortran ordered. http://www.vishay.com/docs/20035/dcrcwe3.pdf Fortran mentioned that he might be able to presolder a small quantity of boards. I'm not sure if that's by hand or if he has a reflow oven to do them in bulk. Depending on the price difference, I might be interested in that option. |
| PeterZ:
All gerbers i posted in the final version on github are for 1206. |
| Macbeth:
Something else to be said about beginner soldering SMD resistors - they are much more prone to change their value if not soldered quickly and cleanly. Through hole are more forgiving. When you have carefully selected binned resistors to get spot on indexing it can be quite depressing to find it all over the place after soldering! :-DD |
| Fortran:
--- Quote from: bitseeker on June 26, 2016, 04:00:05 am ---+ 54x 1%, 1/4 Watt SMD resistors --- End quote --- I ordered 10 sets of 0.1% resistors as well, since a few people wanted that. --- Quote from: bitseeker on June 26, 2016, 07:14:07 am ---Fortran mentioned that he might be able to presolder a small quantity of boards. I'm not sure if that's by hand or if he has a reflow oven to do them in bulk. Depending on the price difference, I might be interested in that option. --- End quote --- Yes I will hand solder a few sets for those who aren't able to solder themselves. I wasn't planning on charging anything for it if the "aren't able to" criteria is met. Pleas of lazyness aren't good enough, and will go unheeded! ;D |
| bitseeker:
No worries. For me, it's simply the age-old trade-off of time vs. cost. Since that scenario no longer applies here, there's nothing to have to decide. Easy. Hmm, an electronics forum with no smiley that's soldering. ??? |
| Navigation |
| Message Index |
| Next page |
| Previous page |