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Message

De-non tips? was Re: Best way to desolder chips?

2004-10-09 by ballendo

Crow,

I bought one of these years ago at a flea market in silicon valley. 
The man had two, one with a tip, and the other without. Thinking the 
tips would be an easy lathe project, I chose the one which kept more 
money in my pocket...

And have regretted it ever since<G>

What size tip(s) would you recommend for "normal" through hole work?

Ballendo

P.S. Any tips gained through use you'd like to share? Do you use 
yours for SMD work too?




--- In oldsynths@yahoogroups.com, The Old Crow <oldcrow@o...> wrote:
> 
>   The best (and most expensive) way is to get something like the 
Den-On 
> SC7000Z:
> 
> http://www.howardelectronics.com/den-on/sc7000.html
> 
>   I bought one several years ago and it is by far the best tool 
I've ever 
> bought for circuit board repair.  I've used it many times to swap 
out the 
> 40xx chips in CS-80s.  Once you use one there is no going back.
> 
>   I would suggest #80-4-5 solder wick made by Chemtronics as the 
cheap way
> to go.  Some solder wicks are terrible, mostly due to wrong mesh 
size.  
> The one I indicated is a good size for desoldering chip leads.  I 
think
> Digikey still sells the Chemtronics line.
> 
> Crow
> /**/
> 
> On Sun, 12 Sep 2004, rorymcd@m... wrote:
> 
> > Hi: Can someone advise the best way to desolder chips from a 
circuit
> > board? I am working on my CS-60 and want to replace 40xx chips 
with new,
> > but dont want to do more damage than good. I will be putting in 
sockets
> > in their place to make repair easier in the future.
> > 
> > Is there a good method or desolder tool that heats the whole chip 
at
> > once? The only other way I know is to clip off the leads, remove 
the
> > chip, and then desolder the remaining pieces of lead from the 
board.
> > 
> > Please advise (Crow??)
> > 
> > Regards
> > Rory McDonald
> > OLDSYNTHS MODERATOR

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