Re: [softrock40] Re: heat gun vs embossing tool
- On 6/26/2013 9:02 PM, Daniel Morgan wrote:
> Would lead-free solder with rosin core from Radio Shack work building<snip>
> the SoftRock Lite II Combined Kit? I bought this thinking this would
> work. But, I have been hearing hams say that I should be using lead-tin
> solder something like 40/60 with
If I were you, I'd use tin/lead solder (typically 63/37) with
rosin flux and avoid lead-free solder.
The tin/lead eutectic ratio of 63/37 has the lowest melting point
of all tin/lead compositions (183C or 361F):
Lead-free solder melts at higher temperatures, potentially
exposing components to thermal damage while making component
removal more difficult and possibly endangering the PC board.
Here's more info:
Lead-free solder complies with RoHS requirements, but it's
not necessary for hobby projects (or IMO for production
- Actually, I use a cheap Radio Shack station too. Well and a bench magnifying glass too. Mainly because I already had it. But one of these days when it wears out, I plan on upgrading to a nice Weller. So they can be built without buying expensive equipment. You just need steady hands. I've even build a Peaberry using the same setup.
73 David K9GPM
--- In firstname.lastname@example.org, Adam Jacobs <jacobs.adam@...> wrote:
> I still think that if it is your first time building up the board, just
> do it with a soldering iron and do it section by section. Being able to
> follow the various tests and troubleshooting steps for each section as
> it is assembled is very nice, especially when this is your first time.
> There's plenty of room to get fancy and assemble the entire board
> without testing anything on your 2nd or 3rd board. :)
> There is absolutely no requirement to us solder paste, heat gun,
> embossing tool, etc, etc to assemble the components on these boards.
> Tony says he puts them together with a $20 radioshack soldering iron
> (holy cow, Tony! Talk about skill)... I use one of the lower end metcal
> units, but only because I happened to have access to one. Before that, I
> used one of the classic blue-handle Weller irons and it works great.
> Just my $0.02
> -73 Adam W7QI
> On 6/29/2013 11:08 AM, John Greusel wrote:
> > Jon,
> > It's customary to do all the SMT components at once and yes it does
> > change the values in the step by step assembly instructions such that
> > you can't rely on them as much.
> > John
> > KC9OJV
> > ------------------------------------------------------------------------
> > *From:* W7VH <jon@...>
> > *To:* email@example.com
> > *Sent:* Saturday, June 29, 2013 10:02 AM
> > *Subject:* [softrock40] Re: heat gun vs embossing tool
> > Thanks for all the info everybody. If I use the
> > solder paste, I'm still wondering if I need to do
> > all the parts I'm using it on in the whole kit
> > all at once?
> > Thanks,
> > Jon
> > W7VH