[time-nuts] I love the smell of tantalum in the morning

Adrian Godwin artgodwin at gmail.com
Sun Nov 6 12:35:21 EST 2016


I agree - I find them totally useless for applying solder. I'd only use
them for removing parts. To solder them, clean the pads as described here
and solder one end at a time.


On Sun, Nov 6, 2016 at 5:24 PM, Scott Stobbe <scott.j.stobbe at gmail.com>
wrote:

> I would not recommend purchasing soldering tweezers without trying them
> first. They are not easy to control solder application when mounting a
> component.
>
>  I do really like the Weller rt7 knife tip.
>
> On Sunday, 6 November 2016, Adrian Godwin <artgodwin at gmail.com> wrote:
>
> > SMD parts aren't going to go away. It's worth investing in good tools to
> > deal with them and learning the best way to use them.
> >
> > I'd put tweezers quite high on that list, and although the metcals are
> > worthwhile if you can avoid full price, the chinese tweezers are
> > surprisingly useful at very low cost. Buy them to explore their
> deficiences
> > and buy better when you know what you really need.
> >
> > On Sun, Nov 6, 2016 at 4:53 PM, Clint Jay <cjaysharp at gmail.com
> > <javascript:;>> wrote:
> >
> > > Heating one end and adding a little solder to the joint will allow you
> to
> > > lift the cap,  the leads are folded over tabs so they'll bend nicely
> and
> > > allow the cap to lift,  once you've got one end lifted,  heat the other
> > and
> > > it will come away easily.
> > >
> > > Clean up the pads with solder wick then you're good to replace the
> part.
> > >
> > > While I'd like an excuse (and the funds)  to buy a pair of tweezers for
> > > SMD,  I'd find it hard to use that job as an excuse.
> > >
> > > On 5 Nov 2016 19:12, "Tom Van Baak" <tvb at leapsecond.com
> <javascript:;>>
> > wrote:
> > >
> > > > See C13 in the attached photo. I need to replace some blown caps on a
> > few
> > > > boards [1]. In one instance the cap got so hot it melted itself off
> the
> > > > board. Quiet convenient, actually -- it acts like its own fuse --
> but I
> > > > don't think the 5071 designers had that clever feature in mind.
> > > >
> > > > Having not done SMT before, how should I do it with minimal risk to
> the
> > > > very precious PCB. Or, what equipment should I use this as a good
> > excuse
> > > to
> > > > buy?
> > > >
> > > > Thanks,
> > > > /tvb
> > > >
> > > > [0] http://www.imdb.com/title/tt0078788/quotes
> > > > [1] http://leapsecond.com/museum/hp5071a/A1-mother.htm
> > > >
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