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From: jfeng on 30 Apr 2010 17:36
On Apr 30, 11:48 am, Michael <mrdarr...(a)gmail.com> wrote:
> Fry's wanted $13 for some push-down suction desoldering device.
>
> Anyone know where to get a desoldering sucker for a reasonable price?
The going price on eBay seems to be US$5-6, including shipping (do a
search on "solder sucker"). Obviously, your need is not very urgent,
or you would have bought it from Fry's while you had the chance (what
is your time and mileage worth to you?).
From: Michael on 30 Apr 2010 17:46
On Apr 30, 2:36 pm, "jf...(a)my-deja.com" <jf...(a)my-deja.com> wrote:
> On Apr 30, 11:48 am, Michael <mrdarr...(a)gmail.com> wrote:> Fry's wanted $13 for some push-down suction desoldering device.
>
> > Anyone know where to get a desoldering sucker for a reasonable price?
>
> The going price on eBay seems to be US$5-6, including shipping (do a
> search on "solder sucker").  Obviously, your need is not very urgent,
> or you would have bought it from Fry's while you had the chance (what
> is your time and mileage worth to you?).


Not especially urgent... was hoping to desolder a tiny transformer and
capacitor from a dead rechargeable shaver for use in future
experiments.

Fry's was on the way to Roseville last night so I stopped in to take a
peek.

Thanks,

Michael
From: Rich Webb on 30 Apr 2010 15:23
On Fri, 30 Apr 2010 11:48:31 -0700 (PDT), Michael <mrdarrett(a)gmail.com>
wrote:

>Fry's wanted $13 for some push-down suction desoldering device.
>
>Anyone know where to get a desoldering sucker for a reasonable price?

This http://www.radioshack.com/product/index.jsp?productId=2062731 may
be the least bad cheap option. They also carry the "regular" spring-
loaded suckers.

Look around someplace like http://www.howardelectronics.com/ for some
real stations, though. Good home/hobby/proto-lab stations aren't
terribly expensive and do make the work a lot easier.

--
Rich Webb Norfolk, VA
From: John Larkin on 30 Apr 2010 22:14
On Fri, 30 Apr 2010 14:16:46 -0700 (PDT), Michael
<mrdarrett(a)gmail.com> wrote:

>On Apr 30, 12:35�pm, John Larkin
><jjlar...(a)highNOTlandTHIStechnologyPART.com> wrote:
>> On Fri, 30 Apr 2010 11:48:31 -0700 (PDT), Michael
>>
>> <mrdarr...(a)gmail.com> wrote:
>> >Fry's wanted $13 for some push-down suction desoldering device.
>>
>> Sounds reasonable to me. Why didn't you just buy it?
>
>
>I'm frugal, plus it sells for the equivalent of $2 outside of the
>country...
>
>

What does a plane ticket cost?

John

From: Michael Black on 30 Apr 2010 22:42
On Fri, 30 Apr 2010, Michael wrote:

> Fry's wanted $13 for some push-down suction desoldering device.
>
> Anyone know where to get a desoldering sucker for a reasonable price?
>
First, you don't need any fancy tools for a lot of desoldering. Most
of them became common after circuit boards became common, where you
needed to clean the holes when removing parts.

If two wires are soldered together, all you have to do is heat up
the joint and then pull them apart. If there is a good mechanical
bond, it may be difficult, but no desoldering tool is going to get
all the solder out, so there will never be a time when you can
just untwist the joint.

Solder suckers are great, for specific uses, and really do have a lot
of suction power. I paid about ten dollars here in Canada over twenty
years ago for mine, it still works fine and it was a good tool to have
around. I actually bought it for one very specific desoldering task,
and having it for that one task was worth buying it for, but of course
I've had it to use for everything else ever since.

I don't find the bulbs particularly great. On the other hand, for
about ten dollars, also twenty years ago, I bought at Radio Shack
a desoldering iron, basically a soldering iron with a bulb attached
to it. That too was a good purchase, it serves in different ways
than the solder sucker, and has the advantage of the bulb attached
to the iron so it is much easier to use than if they were too
separate units. On the other hand, the soldering tip on that unit
was not plated so it wore down fast, and oddly, for some years Radio
Shack did not offer a replacement tip, even though the tip was
replaceable. That later changed.

Solder wick is more for cleaning up joints and holes after parts
have been removed or disconnected. For wires, one can just flick
the heated wire and the solder will fall off, being careful to not
let it land on bare skin, or fly into one's eyes. It can be very
useful when repairing circuit boards, because no matter how good
the suction of a solder sucker, there is often some solder left
in the holes, and if you are putting parts back in, the solder
wick cleans up the holes.

If you're just removing parts to use elsewhere, a solder sucker is good
enough. Even then, if there aren't a lot of leads to the component,
one can just heat up the joints on the circuit board and pull the
component off. If there are more leads, one may have to rock the
component, and of course move the soldering iron around the joints
to get them all heated up. Use something as a lever under an IC,
and one can get 8pin ICs off a circuit board just by heating the
pins in sequence, though that's not so smart if you want to reuse
the board (as when repairing the equipment and putting a new
IC in to replace a failed one). It's doable with 14 or 16pin ICs,
but it gets harder and risker, unless one has a better heat source
to get multiple pins hot at the same time.

Michael

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