Re: removing chip from board

[btomlin@crl.com (Bruce Tomlin)]

Rick Light (rick.light@swamp.mn.org) wrote in comp.sys.apple2:
>I had a couple of RAM chips go bad on a fully loaded Apple 1 meg memory
>card.  I have a number of extra cards with 256 K soldered on the boards
>and would like to remove the chips and use them if possible.  How do you
>do something like this?  Thanks for the help.

Radio Shack sells a very nice desoldering iron with a big red suction 
bulb on top of it.  Cheap, too.

But before you attempt desoldering "real" chips, I recommend a few things:

  1) practice on a junk board
  2) leave enough time for the solder to melt all the way through
     the hole (I usually count to eight)
  3) most importantly, use a fresh tip (they sell two tips at RS,
                                        get the cheaper one.)

"Tinning" the tip apparently helps, too.