Very informative article on SMT soldering too. Bob M. ====== --- rds_6 <[EMAIL PROTECTED]> wrote:
> The repeater-builder.com site has a great web page > on the repair of > Toshiba S-AV17 RF PA modules fabricated on a ceramic > substrate at: > http://www.repeater-builder.com/kenwood/s-av17-repair.html > > The article notes how difficult it is to re-tin the > stripline inductor > traces because the ceramic substrate transfers heat > so efficiently to > the heat sink. So, I thought, "why not turn the > heat sink into a heat > source?" Borrowing from the > "candle-warmer/embossing-gun/solder-paste" > technique for hot-air SMT soldering, as shown at: > http://www.zianet.com/erg/SMT_Soldering.html > I put the S-AV17 module on a candle warmer for ten > minutes before, as > well as during, the re-tinning of its traces. With > the candle-warmer > pre-heating, soldering was as easy as if it were an > FR4 PCB. > 73, > Ross N0GSZ ____________________________________________________________________________________ Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ
