MOTM

Hi all,

The SSMs are eight pin DILs. Go get a bit for your iron that heats all
eight pins up at the same time. Most of the big mail order guys do one.
You then pull the chip out with a chip extractor or a little
screwdriver. It may be cheaper than buying a load of SSM2220/2210.

The way I do it, and I have never had to cut a 8 pin DIL off at the
body, is to heat one row of the legs at once with a normal 5mm bit. Use
lots of fresh solder smother the pads in solder, you can always soak it
up later. Prise the IC up with a screwdriver. Then do the other side.
Spend only 10 seconds or so to do each side to keep the temp of the IC
down.

For a 14 pin DIL, I would probably go for the cut legs method.

OR... only for the very brave/stupid, ie. not me :-) Gas blow lamp on
'fine' 20mm wide flame. 2 second burst on the back of the board aiming
at the IC. Then immediately bang the board onto the bench and the IC
drops out. I never tried it, but I had a colleague who dumpster dived
computer boards to rescue ICs who did this regularly.

Regards,

Tony Allgood  Penrith, Cumbria, England

Oakley Modular Synth and TB3030:
www.techrepairs.freeserve.co.uk/projects.htm
My music: www.mp3.com/taklamakan