I have met the Devil

[hank alrich]

and his details are in ROHS "solder".

Church SR upgrade. 24 + 8 snake going into 2" conduit replacing skinny
16 + 4 snake. Had to detach 16 XLR's to get it skinny enough to fit.
Nothing I desoldered looked like a known solder joint. Reassemply was
more entertaining. What do they make this out of? I kep tthinking it was
a combination of Velveeta and some new liquid aluminum foil from JB of
the Weld fame.

I predict **** will be falling apart all over the planet.

--
shut up and play your guitar * http://hankalrich.com/
http://armadillomusicproductions.com/who'slistening.html
http://www.sonicbids.com/HankandShaidriAlrichwithDougHarman

[John Williamson]

hank alrich wrote:
> and his details are in ROHS "solder".
>
> Church SR upgrade. 24 + 8 snake going into 2" conduit replacing skinny
> 16 + 4 snake. Had to detach 16 XLR's to get it skinny enough to fit.
> Nothing I desoldered looked like a known solder joint. Reassemply was
> more entertaining. What do they make this out of? I kep tthinking it was
> a combination of Velveeta and some new liquid aluminum foil from JB of
> the Weld fame.
>
> I predict **** will be falling apart all over the planet.
>
Tin, silver and copper, usually, though some leaves out the silver. Here
in the UK,it's been the only stuff for sale for quite a while now.

It's so good, I'm hoarding all the old solder for important stuff.

--
Tciao for Now!

John.

[hank alrich]

John Williamson > wrote:

> hank alrich wrote:
> > and his details are in ROHS "solder".
> >
> > Church SR upgrade. 24 + 8 snake going into 2" conduit replacing skinny
> > 16 + 4 snake. Had to detach 16 XLR's to get it skinny enough to fit.
> > Nothing I desoldered looked like a known solder joint. Reassemply was
> > more entertaining. What do they make this out of? I kep tthinking it was
> > a combination of Velveeta and some new liquid aluminum foil from JB of
> > the Weld fame.
> >
> > I predict **** will be falling apart all over the planet.
> >
> Tin, silver and copper, usually, though some leaves out the silver. Here
> in the UK,it's been the only stuff for sale for quite a while now.
>
> It's so good, I'm hoarding all the old solder for important stuff.

Yeah, I kept looking at my old roll of real solder and thinking I
should've bought several. I better look to see if I still can.

--
shut up and play your guitar * http://hankalrich.com/
http://armadillomusicproductions.com/who'slistening.html
http://www.sonicbids.com/HankandShaidriAlrichwithDougHarman

[Scott Dorsey]

hank alrich > wrote:
>Church SR upgrade. 24 + 8 snake going into 2" conduit replacing skinny
>16 + 4 snake. Had to detach 16 XLR's to get it skinny enough to fit.
>Nothing I desoldered looked like a known solder joint. Reassemply was
>more entertaining. What do they make this out of? I kep tthinking it was
>a combination of Velveeta and some new liquid aluminum foil from JB of
>the Weld fame.

1. There are all different kinds of RoHS solder. They all work a little
bit differently, though they all need a lot of heat. Places in China
buy whatever is cheapest today, so by the time their technicians get to
the point where they are used to one kind, they change it.

2. Whirlwind and Gepco will make cable assemblies up with normal solder if
you ask them.

3. When you rework this stuff, you need to remove all of the RoHS junk
because it will contaminate good solder. My normal practice is to
suck off all the old stuff, then coat the connection with 63/37, then
suck THAT off, then resolder the joint. This may not be enough but it
is already too timeconsuming.

>I predict **** will be falling apart all over the planet.

Your predictions came true before you made them. That's worse than
Nancy Reagan's astrologer.
--scott

--
"C'est un Nagra. C'est suisse, et tres, tres precis."

[Scott Dorsey]

hank alrich > wrote:
>
>Yeah, I kept looking at my old roll of real solder and thinking I
>should've bought several. I better look to see if I still can.

You can, and you always will because the military is very big on real
63/37.

All Electronics right now has some Canadian surplus 63/37 for sale cheap
too.
--scott

--
"C'est un Nagra. C'est suisse, et tres, tres precis."

[John Williamson]

Soundhaspriority wrote:
> "hank alrich" > wrote in message
> ...
>> John Williamson > wrote:
>>
>>> hank alrich wrote:
>>>> and his details are in ROHS "solder".
>>>>
>>>> Church SR upgrade. 24 + 8 snake going into 2" conduit replacing skinny
>>>> 16 + 4 snake. Had to detach 16 XLR's to get it skinny enough to fit.
>>>> Nothing I desoldered looked like a known solder joint. Reassemply was
>>>> more entertaining. What do they make this out of? I kep tthinking it
>>>> was
>>>> a combination of Velveeta and some new liquid aluminum foil from JB of
>>>> the Weld fame.
>>>>
> Hank, if you're using a temperature controlled iron, you need to either
> replace the tip with a higher temp one, or dial it up. ROHS solder is
> specified for 75-100 degrees higher than the old stuff.
>
> This does not contradict anything that has been said, but if you're having
> particular trouble with joints, more heat is specced.
>
+1

Also, you may find that just about every reel you buy has a different
formula, and so a different operating temperature. Just to make things
interesting, like.....


--
Tciao for Now!

John.

[gjsmo]

My roll of 62/36/2ag (silver) is the only stuff I use. I lost it once,
and only had my dad's RoHS plumbing solder. I was re-wiring my
friend's bass, and it was torture. Especially with an 18W iron.
Also, I seem to remember hearing that this stuff forms small
"fibers" (not the right term) which then short out PCBs. It's probably
the worst thing to happen to electronics since everything was
outsourced to China.

[gjsmo]

On Feb 27, 4:20*pm, "Soundhaspriority" > wrote:
> "gjsmo" > wrote in message
>
> ...
>
> > My roll of 62/36/2ag (silver) is the only stuff I use. I lost it once,
> > and only had my dad's RoHS plumbing solder. I was re-wiring my
> > friend's bass, and it was torture. Especially with an 18W iron.
> > Also, I seem to remember hearing that this stuff forms small
> > "fibers" (not the right term) which then short out PCBs. It's probably
> > the worst thing to happen to electronics since everything was
> > outsourced to China.
>
> Yes, and there is also "tin disease", known since the middle ages. If the
> joint is exposed to a temperature below around 56F, the tin will revert to
> another allotrope, another physical form of the same element.
>
> This other form is a white powder, with lower density than shiny tin, so as
> it forms and expands, it tears the joint apart.

Wait... powdered tin conducts electricity? I have a feeling the joint
would fail before it was torn apart.

> Provided the equipment is stored indoors, a reasonable life can be expected.
> But don't leave it out in the truck, unless it has received an ROHS
> exemption.

Never mind water damage...

> Bob Morein
> (310) 237-6511

[Scott Dorsey]

gjsmo > wrote:
>Wait... powdered tin conducts electricity? I have a feeling the joint
>would fail before it was torn apart.

No, the oxide powder just makes the joint break down.

The tin whiskers are interesting because it's basically an electromigration
problem. The higher the voltage gradient, the faster they form. Not a real
problem for typical IC-based stuff, but a serious issue for condenser mikes
which have high voltages and tight spacing inside the can.

Conformal coat slows and changes whisker growth but not always in a
predictable way.

But the real problem with the stuff is just the difficulty in making solid
and amorphous joints. It's possible, but it's difficult and most pick and
place shops can't seem to do a decent job yet.
--scott

--
"C'est un Nagra. C'est suisse, et tres, tres precis."

[Arny Krueger]

"hank alrich" > wrote in message

> and his details are in ROHS "solder".
>
> Church SR upgrade. 24 + 8 snake going into 2" conduit
> replacing skinny 16 + 4 snake. Had to detach 16 XLR's to
> get it skinny enough to fit. Nothing I desoldered looked
> like a known solder joint. Reassemply was more
> entertaining. What do they make this out of? I kep
> tthinking it was a combination of Velveeta and some new
> liquid aluminum foil from JB of the Weld fame.
>
> I predict **** will be falling apart all over the planet.

It already has happened. Most people in the business want to stay in the
business, so many of them have figured out what to to with RoHS solder. Its
alleged that Behringer has had their moments of faith and doubt...

I haven't. As far as I've gotten with it is a bunch of plumbing jobs that
would have been easy with Tin/Lead solder. In the end they got done right,
but it seems like it took twice the time and about 10 times the patience.

I've got 2 mostly-complete rolls of 63/37, one of which really fine and
genuine Ersin. At my age, that might be a lifetime supply. ;-)

[hank alrich]

Scott Dorsey > wrote:

> hank alrich > wrote:
> >Church SR upgrade. 24 + 8 snake going into 2" conduit replacing skinny
> >16 + 4 snake. Had to detach 16 XLR's to get it skinny enough to fit.
> >Nothing I desoldered looked like a known solder joint. Reassemply was
> >more entertaining. What do they make this out of? I kep tthinking it was
> >a combination of Velveeta and some new liquid aluminum foil from JB of
> >the Weld fame.
>
> 1. There are all different kinds of RoHS solder. They all work a little
> bit differently, though they all need a lot of heat. Places in China
> buy whatever is cheapest today, so by the time their technicians get to
> the point where they are used to one kind, they change it.
>
> 2. Whirlwind and Gepco will make cable assemblies up with normal solder if
> you ask them.
>
> 3. When you rework this stuff, you need to remove all of the RoHS junk
> because it will contaminate good solder. My normal practice is to
> suck off all the old stuff, then coat the connection with 63/37, then
> suck THAT off, then resolder the joint. This may not be enough but it
> is already too timeconsuming.
>
> >I predict **** will be falling apart all over the planet.
>
> Your predictions came true before you made them.

I used neutrinos in the prediction process.

(Werner Heisenberg gets pulled over. The cop approaches, and asks, "Do
you know how fast you were going?" Heisenberg replies, "No, but I know
where I am.")

> That's worse than Nancy Reagan's astrologer.

"Not tonight, Ron; the stars aren't right, and I have a headache."

--
shut up and play your guitar * http://hankalrich.com/
http://www.youtube.com/walkinaymusic
http://www.sonicbids.com/HankandShaidri