Re: [volt-nuts] Thermal EMF of common solder
On 6/26/2016 9:12 AM, Andrea Baldoni wrote: > Hello All. > > I measured the thermal EMF of two common solder, the lead free > Sn96.5/Ag3/Cu0.5 and the old Sn60/Pb40. > I have ordered a spool of Sn96/Ag4 (the recommended low-thermal-EMF > replacement > for cadmium based one) and I will post the result for this too. > I could probably find also Sn97/Ag3 and Sn97/Cu3 if it's reasonable to check > them; I accept suggestion on what else to try between the RoHS complaint ones. > > Copper - Sn96.5/Ag3/Cu0.5 -> 3.4uV^C > Copper - Sn60/Pb40 -> 3.3uV^C > > Best regards, > Andrea Baldoni > ___ > volt-nuts mailing list -- volt-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts > and follow the instructions there. Andrea, Thanks for this. I suspect that if you contact any of the solder manufacturers, particularly Indium Corp. or Kester and explain what you are doing, they'll happily provide samples. Sn96.5/Ag3.0/Cu0.5 is also commonly known as SAC 305 Sn95.5/Ag4/Cu0.5 is similarly known as SAC 405 Oz (in DFW, Texas, US) -- mailto:o...@ozindfw.net Oz POB 93167 Southlake, TX 76092 (Near DFW Airport) ___ volt-nuts mailing list -- volt-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.
Re: [volt-nuts] *WAY* too expensive for even Keysight to redesign
On 5/13/2015 1:02 PM, Poul-Henning Kamp wrote: In message 6.2.5.6.2.20150513113523.072f2...@comcast.net, Marv @ Home writes: Aside, there are private fabrication houses that make short runs of obsolete chips [...] Ehh, dudes... a m68k compatible chip is not unobtanium. Besides, the HP3458A is written mostly in KR style C, using IEEE floating point so porting it to another chip is not a big deal. And now that you mention it, there are FPGA/ASIC 68K cores as well. -- mailto:o...@ozindfw.net Oz POB 93167 Southlake, TX 76092 (Near DFW Airport) ___ volt-nuts mailing list -- volt-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.
Re: [volt-nuts] PC board layout software [WAS: HP-419...]
I've used both and settled on KiCAD. I have customers that use Eagle, so I have the most recent versions installed and use it on a regular basis as well. Both Eagle and KiCAD have their quirks. There are a lot of library components for both. This isn't much of a factor for me because I always seem to build my own for projects. I find building KiCAD parts easier than Eagle, though I've heard others claim exactly the opposite. Eagle has a larger user base and therefore support community. KiCAD has a smaller, but very effective support community. My recommendation is give KiCAD a try. The real cost for either package is the learning curve, and I think KiCAD is easier to get productive in. Oz (In DFW) On 12/3/2014 4:46 PM, Charles Steinmetz wrote: I'd be interested to hear from users, whether partisan or neutral, who have recent experience with *both* packages (Eagle 6 or 7 *and* KiCAD 2013.07.07). Best regards, Charles -- mailto:o...@ozindfw.net Oz POB 93167 Southlake, TX 76092 (Near DFW Airport) ___ volt-nuts mailing list -- volt-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.
