-------- In message <canx10hankpjm3dkg8cehszcxlqc43pw0wphkzhhdr6fenne...@mail.gmail.com>, "Dr. David K irkby (Kirkby Microwave Ltd)" writes: >On 28 Oct 2016 15:25, "Juris L" <juri...@gmail.com> wrote: >> >> Found reference to optimal emf solder composition cadmium/tin alloy >> (70 %/30 %) in JJ array measurement article page 12. > >I wonder how practical it is to weld test leads, so there's no solder or >thermal EMF. > >I know that this will sound crazy, and probably is, but could one weld >components to a PCB?
The very first TTL ICs were not soldered but spot-welded to the PCB, we have some of them in a RC4000 computer in datamuseum.dk and also the people who designed and built the computer. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@freebsd.org | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. _______________________________________________ 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.
