Re: KRX3 Installation R91 mod

Posted by Rich on Jan 24, 2009; 8:37pm
URL: http://elecraft.85.s1.nabble.com/KRX3-Installation-R91-mod-tp2208918p2210460.html

Ron's 3rd hint is very important!  Keep some handy.  Put some on the solderwick when trying to remove components or clear holes. If that little spool of solder wick is more than a few months old the flux in it has dried out and all you are doing is heating the board/lifting the pad. I don't know how kosher it is but I keep a tin of rosin-flux paste and dip the tip of the iron it and then re-dress the tip at the start of each evenings work. It seems like these newer plated tips (that you find on the temp-controlled models) don't hold their tinning and get a build up of invisable corrosion. With the older copper tips it was quite obvious they needed re-tinning.  


*** Don't use plumbing solder paste on your PCB.  ***


Rich,
KE0X

Ron D'Eau Claire wrote

3) A very small amount of rosin is very handy if you want to avoid adding
solder. Rosin pens that dispense a tiny drop are perfect for this but even a
bottle is fine if you use a tooth pick or bit of wire to add a drop just
before soldering. Rosin in pens and bottles are available from many on-line
resources and (for the lucky ones with one nearby) most electronics supply
houses.

Ron AC7AC