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

Scott Stobbe scott.j.stobbe at gmail.com
Sun Nov 6 17:24:53 UTC 2016


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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