Bottlehead Forum

Bottlehead Kits => Crack => Topic started by: Slackman on April 07, 2014, 02:09:08 PM

Title: Recommended solder
Post by: Slackman on April 07, 2014, 02:09:08 PM
Hello all,

Just joined today because my Crack kit arrived a couple of days ago. I am looking forward to diving into the kit.

My apologies if this has been asked before, but I couldn't find it with a search -- what is the best brand or type of solder to use for the Crack? I have very little experience soldering, so I want to use something that is "easy" and yet will yield a great sounding amp. Thanks in advance for any advice. I'm sure I'll have other questions later.

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Title: Re: Recommended solder
Post by: Grainger49 on April 07, 2014, 02:50:53 PM
Any solder with lead and tin will work well if it has the flux in it.  It should probably say for electronics.

Avoid any solder with copper or silver in it.  Those take too much heat for a noob.

You will probably find a number of solder threads in the Tech Tools folder.  Go there and search for "solder."
Title: Re: Recommended solder
Post by: mcandmar on April 07, 2014, 03:07:36 PM
As above 60/40 with flux is what you want, generally described as rosin core solder. Just avoid the lead free solder and you will be fine.
Title: Re: Recommended solder
Post by: STURMJ on April 07, 2014, 05:06:27 PM
Also, make sure it is not acid flux.  (Someone here had done that) but no electronics solder would have that.
Title: Re: Recommended solder
Post by: JamieMcC on April 07, 2014, 06:31:45 PM
I had good results with the Cardas quad eutectic solder.
Title: Re: Recommended solder
Post by: mcandmar on April 07, 2014, 06:52:41 PM
I had good results with the Cardas quad eutectic solder.

I swear by the stuff too, always leaves a nice shiny finish.  Only reason i didn't suggest it was Graingers comment above, i have no idea what temperature my iron runs at, i just know roughly high far to turn up the dial for different jobs, i just had to figure that out from trial and error.  Only thing i don't like about it is the flux, it seems to have an unusually high concentration, great for clean consistent joints, but on circuit boards it can leave a right mess you have to clean up.  It ain't that cheap either..
Title: Re: Recommended solder
Post by: JamieMcC on April 07, 2014, 08:19:40 PM
I brought 1 meter of Cardas quad eutectic solder off of ebay (plenty for Crack + speedball) as I noticed quiet a few recommendations for it on the different forums. At the same time I also picked up some cheap resin core 60/40 to practice with I had somehow concluded the eutectic would be harder to use than the 60/40  but actually found the eutectic was easier for me to get good results with. 
Title: Re: Recommended solder
Post by: Grainger49 on April 08, 2014, 02:05:30 AM
I have an old Weller soldering station, from the 70s.  I, too, use the Cardas Quad Eutectic. 

Since the soldering station heats in about 20 seconds, and I think it is pretty hot, I can't say whether it will work with lower powered soldering pens.
Title: Re: Recommended solder
Post by: Slackman on April 08, 2014, 02:44:11 AM
Thanks for all the replies and advice. Looking forward to buying some solder and getting started.
Title: Re: Recommended solder
Post by: NightFlight on April 12, 2014, 04:58:14 PM
I believe the Cardass Quad is one the best to work with. Eutectic if I have it correctly just means all the elements cool and solidify at the same rate.
Title: Re: Recommended solder
Post by: Grainger49 on April 13, 2014, 03:08:57 AM
Just to clarify, all the metals in eutectic solder melt and freeze at the same temperature.  A cold solder joint is often caused by the metal components of solder freezing at different temperatures so the metals migrate in the pool.
Title: Re: Recommended solder
Post by: Chris65 on April 13, 2014, 03:15:15 AM
It doesn't 'freeze', it solidifies. ;)
Title: Re: Recommended solder
Post by: Doc B. on April 13, 2014, 08:03:14 AM
Yeah I'll back Grainger up on this one. Freezing and solidification are the same thing, the phase change from liquid to solid.
Title: Re: Recommended solder
Post by: Chris65 on April 13, 2014, 07:39:51 PM
Freezing and solidification are the same thing,....

Yes it is. My poor attempt at a joke, the way we use terms (like boot/trunk, etc)
Title: Re: Recommended solder
Post by: Doc B. on April 14, 2014, 05:42:19 AM
Do you mean to say you call an elephant's nose a boot?  ;)

Title: Re: Recommended solder
Post by: Chris65 on April 14, 2014, 07:17:07 AM
Well, if the shoe fits! ;D.....and depends if he's wearing a hood to look under the bonnet, or a bonnet to look under the hood! :D :D
Title: Re: Recommended solder
Post by: Paul Joppa on April 14, 2014, 02:38:18 PM
Probably shouldn't mention what Australians call a bum bag.