"The first 3.5’s did not flush worth a crap."
LOL!
two words: Siphon Jet...
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Eutectic solder may at the end of the day produce better solder joints because it has less of the mushy phase. "Cold" solder joints can be caused by the solder being disturbed during the mushy phase.
LOL!
two words: Siphon Jet...
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Eutectic solder may at the end of the day produce better solder joints because it has less of the mushy phase. "Cold" solder joints can be caused by the solder being disturbed during the mushy phase.
I had to buy some more Cardas Quad today and while Google searching found some interesting marketing spin on a Cardas Tri product page. The retailer claims the phone company had to reheat joints made with 60/40 solder every year, for reliability, until eutectic 63/37 solder was discovered.
" When the phone company used this type of solder on their main frames, every joint had to be reheated once a year to insure reliability."
Cardas Tri Eutectic Lead Free Silver Solder Roll 100gm by Revolution Power
It would be interesting to know if there is any historical truth to that...
-agdr
" When the phone company used this type of solder on their main frames, every joint had to be reheated once a year to insure reliability."
Cardas Tri Eutectic Lead Free Silver Solder Roll 100gm by Revolution Power
It would be interesting to know if there is any historical truth to that...
-agdr
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We never reheated anything back in U.S.S.R. Solder was used POS-61, it contained Antimony, 0.5%; Tin, 61%; and Lead, 39.5%
For electronics organic pine rosin was used. I still remember that smell...
Edit: there was so called Solder type A, but it was used for phone cables only. It was exactly 63/37.
For electronics organic pine rosin was used. I still remember that smell...
Edit: there was so called Solder type A, but it was used for phone cables only. It was exactly 63/37.
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That's what kills old OCxx transistors ... tap 'em to break the whisker and off they go again (for a while)
60/40 is a general purpose solder with a pasty range for a little workability.
For soldering electronic components use a eutectic designed for soldering electronic components.
The cheapest and easiest available eutectic is 63/37.
There are many others but all are more expensive and less likely to be widely available.
For soldering electronic components use a eutectic designed for soldering electronic components.
The cheapest and easiest available eutectic is 63/37.
There are many others but all are more expensive and less likely to be widely available.
I had to buy some more Cardas Quad today and while Google searching found some interesting marketing spin on a Cardas Tri product page. The retailer claims the phone company had to reheat joints made with 60/40 solder every year, for reliability, until eutectic 63/37 solder was discovered.
" When the phone company used this type of solder on their main frames, every joint had to be reheated once a year to insure reliability."
Cardas Tri Eutectic Lead Free Silver Solder Roll 100gm by Revolution Power
It would be interesting to know if there is any historical truth to that...
-agdr
Here are a few other snippets from that marketing pitch:
"Today, all printed circuit boards use 63/37 eutectic solder.".......not if they are ROHS compliant.
"Cardas reports never having, or hearing of, a single failure in one of these joints.".....well George apparently hasn't seen any of my solder work
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I am using leaded WBT 4% silver - excellent stuff
WBT 4% SILVER SOLDER (Lead based)
By the way old marry days in the USSR I was taught that silver is must for a good solder
WBT 4% SILVER SOLDER (Lead based)
By the way old marry days in the USSR I was taught that silver is must for a good solder
great stuff, particularly if you can still get the Quad version; does include lead, but very nice to work with
Multicore do a tin lead silver copper based solder called SAVBIT, the copper was added to stop the copper soldering iron bits disolving.
Also US patent 4938924 may be of interest.
Sorry but I am cynical about audiophile solder etc, this being such a critical process in ALL manufactured electronics, there is a heap of research done out there regarding soldering and how it works. If you dont solder your products correctly its game over for a manufacturing company.
Got to addmit though the Cardas marketing was a jolly hoot.
From experience the eutectic mixtures with lead are the best for reliability, ease of soldering etc, we use them here at work with no problems.
Nassa are currently doing long term reliability work on the lead free solders, but high rel inductries (mil/aero/medical) wont be moving over for a while.
For the record the amount of lead that was used in electronics was in the bottom 1% of world wide lead usage (before ROHS), of course now with lead free solder energy consumption has increased to cope with the increased soldering temeratures.
Also US patent 4938924 may be of interest.
Sorry but I am cynical about audiophile solder etc, this being such a critical process in ALL manufactured electronics, there is a heap of research done out there regarding soldering and how it works. If you dont solder your products correctly its game over for a manufacturing company.
Got to addmit though the Cardas marketing was a jolly hoot.
From experience the eutectic mixtures with lead are the best for reliability, ease of soldering etc, we use them here at work with no problems.
Nassa are currently doing long term reliability work on the lead free solders, but high rel inductries (mil/aero/medical) wont be moving over for a while.
For the record the amount of lead that was used in electronics was in the bottom 1% of world wide lead usage (before ROHS), of course now with lead free solder energy consumption has increased to cope with the increased soldering temeratures.
Speaking of solder products from Multicore, have always had very good results with Multicore Crystal Flux 511, has worked well with everything from SMD pcb rework (only older leaded boards!) to p-p wiring in the tube amps. Wets and flows well, tolerant of imperfectly clean surfaces, not excessive residue.
And for those that want to go lead free, Senju Metal Products in Japan make "Sparkle" 3% silver lead free solder that actually tins and flows well - use this at work as pretty much everything there is now lead free.
And for those that want to go lead free, Senju Metal Products in Japan make "Sparkle" 3% silver lead free solder that actually tins and flows well - use this at work as pretty much everything there is now lead free.
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