[Test-Equipment] Unsoldering

[Edward B Richards]

Hi Blair;

A trick we used when I worked for Motorola was to add solder until all of
the pins were in a pool of molten solder. Then gently pull the IC out.
Good luck.

73, Ed Richards, K6UUZ
Simi Valley, California, 93065
Home of Air Force 1 Pavilion

On Thu, 3 Nov 2005 19:22:08 -0800 (PST) Rasputin Novgorod
<priapulus at yahoo.com> writes:
> Sorry, here goes another off-topic message.
> 
> I'm an electronic hobbyist with some nice, if old,
> HP test gear. A electronics service tech friend gives
> me dead and abandoned old electronics, which I like
> to disassemble for the parts. I only go after the interesting,
> expensive or rare parts; most new electronics parts
> are so cheap now that they aren't worth the effort.
> 
> This works fine for single-sided pc boards, but I 
> find it impossible to remove parts from double-sided
> plated thru holes w/o distroying everything. I've tried
> solder suckers, braid, fancy vacuum pump irons, etc,
> but it is very difficult to get those plated-thru holes
> clean.
> 
> I've found it helps to use a big iron, 80 watts, to dump a lot
> of heat quickly and pop out the part. Smaller irons seem
> to just burnup the board w/o melting the solder. I can get out
> resistors and caps, but IC's are impossible. I've rescued
> some IC's (expensive ones that are worth the effort) by 
> cutting the board with tin snips close to the pins 
> and removing pins one by one.
> 
> So, any suggestions for salvaging parts from double sided PCs?
> 
> Sincerely
> Blair
> 
> 
>                 
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