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What is the purspose of pre-tinned wire?
Some insulated multistrnd copper wire is pre-tinned and a lot is
not. What is the purpose of pre-tinned wire? As far as I can see the advantage is that the copper core doesn't oxidise which means the wire can be soldered or fixed to a terminate with only minimal cleaning. Sounds like a good thing to me, so why isn't almost all wire pre- tinned? Is cost really so different? Does the tinning-coating replace where copper would have been in the overall wire and tinning is of higher reistence? Is flexibility affected? |
What is the purspose of pre-tinned wire?
On Fri, 17 Apr 2009 04:14:40 +0100, Sandi wrote:
:Some insulated multistrnd copper wire is pre-tinned and a lot is :not. : :What is the purpose of pre-tinned wire? As far as I can see the :advantage is that the copper core doesn't oxidise which means the :wire can be soldered or fixed to a terminate with only minimal :cleaning. : :Sounds like a good thing to me, so why isn't almost all wire pre- :tinned? : :Is cost really so different? : :Does the tinning-coating replace where copper would have been in :the overall wire and tinning is of higher reistence? : :Is flexibility affected? As you surmised, the answer is cost. It is not the cost of the tin itself but the additional process and handling which adds to the complexity of production. The copper conductor wire gauge is not made smaller where tinning is not applied and the added few microns of tin would not affect resistance/unit length by any significant degree. Flexibility is not an issue. I think that manufacturers realise the majority of termination methods used today rely on crimping or soldering while the copper conductors are clean. Tinned conductors are an advantage where the conductors are secured by screws or wire-wrap although less so for the latter. Insulation displacement techniques are not a problem for untinned conductors. |
What is the purspose of pre-tinned wire?
"Sandi" wrote in message ... snip Does the tinning-coating replace where copper would have been in the overall wire and tinning is of higher reistence? Is flexibility affected? Tin has a much lower conductivity than copper, and as RF travels on the surface of a conductor, it would attenuate RF and high frequency AC Steve Terry |
What is the purspose of pre-tinned wire?
Steve Terry wrote: "Sandi" wrote in message snip Does the tinning-coating replace where copper would have been in the overall wire and tinning is of higher reistence? Is flexibility affected? Tin has a much lower conductivity than copper, and as RF travels on the surface of a conductor, it would attenuate RF and high frequency AC Largely irrelevant since the RF flows on the surface of the entire bundle of conductors, not individual uninsulated strands. Graham |
What is the purspose of pre-tinned wire?
"Pilgrim" "Steve Terry" "Sandi" Tin has a much lower conductivity than copper, and as RF travels on the surface of a conductor, it would attenuate RF and high frequency AC Is that why most, but not all, teflon insulated wire was silver plated? ** No. Teflon coated wire intended is for high temp applications. Silver has a much higher melting point than tin ( just a tad below copper) and is more corrosion resistant too. ...... Phil |
What is the purspose of pre-tinned wire?
In article ,
"Steve Terry" wrote: "Sandi" wrote in message ... snip Does the tinning-coating replace where copper would have been in the overall wire and tinning is of higher reistence? Is flexibility affected? Tin has a much lower conductivity than copper, and as RF travels on the surface of a conductor, it would attenuate RF and high frequency AC Steve Terry Is that why most, but not all, teflon insulated wire was silver plated? Chuck P. |
What is the purspose of pre-tinned wire?
In article , Pilgrim wrote:
In article , "Steve Terry" wrote: "Sandi" wrote in message ... snip Does the tinning-coating replace where copper would have been in the overall wire and tinning is of higher reistence? Is flexibility affected? Tin has a much lower conductivity than copper, and as RF travels on the surface of a conductor, it would attenuate RF and high frequency AC Steve Terry Is that why most, but not all, teflon insulated wire was silver plated? Chuck P. Most of my TFE coated wire is not silvered butl is tinned. All TFE wirewrap is silvered. greg |
What is the purspose of pre-tinned wire?
On Apr 17, 8:41*am, Pilgrim wrote:
In article , *"Steve Terry" wrote: "Sandi" wrote in message ... snip Does the tinning-coating replace where copper would have been in the overall wire and tinning is of higher reistence? Is flexibility affected? Tin has a much lower conductivity than copper, and as RF travels on the surface of a conductor, it would attenuate RF and high frequency AC Steve Terry Is that why most, but not all, teflon insulated wire was silver plated? I think the reason for silver-plated teflon wiring is mostly milspec compliance (and the follow-ons that include the mispecs.) The real question is, why is it in the milspec? Certainly WWII and Korea influenced milspecs a lot to focus on fungus-proofing, and Teflon had some advantages back then when the other insulators were not so fungus resistant. At the same time, other insulating materials can turn copper or even tin-plated copper inside the insulation black with a kinda sooty residue (common on Romex from the 50's-70's for example). It seems to me that silver-plated teflon was a kind of knee jerk reaction to these two issues, a belt-and-suspenders-cost-is-no-object approach to a pretty mundane but really fundamental issue. It's a real joy to work on ex-military equipment with Teflon cable assemblies. Compare it to other consumer or less-speced industrial stuff from the same era with PVC-type insulation, where you flex the cable a little bit and the insulation cracks and falls off leaving bare wires. Tim N3QE |
What is the purspose of pre-tinned wire?
"Pilgrim" wrote in message ... In article , "Steve Terry" wrote: "Sandi" wrote in message ... snip Does the tinning-coating replace where copper would have been in the overall wire and tinning is of higher reistence? Is flexibility affected? Tin has a much lower conductivity than copper, and as RF travels on the surface of a conductor, it would attenuate RF and high frequency AC Steve Terry Is that why most, but not all, teflon insulated wire was silver plated? Chuck P. Yes, Silver is one of the few metals that has a lower resistance than copper, but oxidises easily so silver should be covered, PTFE is one of the best coverings. Steve Terry |
What is the purspose of pre-tinned wire?
Sandi wrote:
On 17 Apr 04:49, Ross Herbert wrote: On Fri, 17 Apr 2009 04:14:40 +0100, Sandi wrote: :Some insulated multistrnd copper wire is pre-tinned and a lot :is not. : :What is the purpose of pre-tinned wire? As far as I can see :the advantage is that the copper core doesn't oxidise which :means the wire can be soldered or fixed to a terminate with :only minimal cleaning. : :Sounds like a good thing to me, so why isn't almost all wire :pre- tinned? : :Is cost really so different? : :Does the tinning-coating replace where copper would have been :in the overall wire and tinning is of higher reistence? : :Is flexibility affected? As you surmised, the answer is cost. It is not the cost of the tin itself but the additional process and handling which adds to the complexity of production. The copper conductor wire gauge is not made smaller where tinning is not applied and the added few microns of tin would not affect resistance/unit length by any significant degree. Flexibility is not an issue. I think that manufacturers realise the majority of termination methods used today rely on crimping or soldering while the copper conductors are clean. Tinned conductors are an advantage where the conductors are secured by screws or wire-wrap although less so for the latter. Insulation displacement techniques are not a problem for untinned conductors. Is it real "tin" that's used? No, it is usually tin/lead alloy, better known as solder. Cheers ian |
What is the purspose of pre-tinned wire?
In article
, Pilgrim wrote: Is that why most, but not all, teflon insulated wire was silver plated? My guess is that tinned wire is soldered more easily even after much exposure to unfriendly environments. You do not have any copper oxide to remove. Any crap in the tin flots away and new solder flows in under such crap. Bill -- Private Profit; Public Poop! Avoid collateral windfall! |
What is the purspose of pre-tinned wire?
On Fri, 17 Apr 2009 15:18:30 +0100, "Steve Terry"
wrote: "Pilgrim" wrote in message ... In article , "Steve Terry" wrote: "Sandi" wrote in message ... snip Does the tinning-coating replace where copper would have been in the overall wire and tinning is of higher reistence? Is flexibility affected? Tin has a much lower conductivity than copper, and as RF travels on the surface of a conductor, it would attenuate RF and high frequency AC Steve Terry Is that why most, but not all, teflon insulated wire was silver plated? Chuck P. Yes, Silver is one of the few metals that has a lower resistance than copper, but oxidises easily so silver should be covered, PTFE is one of the best coverings. Steve Terry Some of the newer wires have PTFE-Polyimide-PTFE insulation. Best of both worlds. |
What is the purspose of pre-tinned wire?
On 4/17/2009 7:20 AM Ian Bell spake thus:
Sandi wrote: Is it real "tin" that's used? No, it is usually tin/lead alloy, better known as solder. Not any more (post-RoHS). (Solder, yes, but not lead.) -- Save the Planet Kill Yourself - motto of the Church of Euthanasia (http://www.churchofeuthanasia.org/) |
What is the purspose of pre-tinned wire?
In article ,
Pilgrim wrote: Tin has a much lower conductivity than copper, and as RF travels on the surface of a conductor, it would attenuate RF and high frequency AC Is that why most, but not all, teflon insulated wire was silver plated? My understanding is that the Teflon-insulated wire uses silverplating for a couple of reasons, related to the high melting point of Teflon (and thus the high temperatures to which the wire is exposed when the Teflon is melt-extruded onto the conductors). The old-standard tin/lead tinning material can't be used in this high-temperature environment, as it would be melted by the heat of the Teflon extrusion, and would fuse a stranded-conductor wire into an inflexible single strand. Not tinning or plating the wire would leave the surface of the copper exposed to high temperatures during the extrusion... I suspect that it would oxidize (if there's any free oxygen in that environment... dunno about that) or might react with the polymer. Even if it didn't react at that time, oxygen would infiltrate the wire at the cut end (albeit slowly) and the last few inches of the wire might end up with a significant amount of copper oxide on the conducter surface. Silver-plating protects the copper from oxidation (I gather that silver oxide is somewhat easier for fluxes to deal with?) and the silver doesn't melt at the Teflon extrusion temperature. I don't believe that the silver plating is thick enough to give the wire a significant conductivity advantage over pure copper, even at RF frequencies. -- Dave Platt AE6EO Friends of Jade Warrior home page: http://www.radagast.org/jade-warrior I do _not_ wish to receive unsolicited commercial email, and I will boycott any company which has the gall to send me such ads! |
What is the purspose of pre-tinned wire?
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What is the purspose of pre-tinned wire?
David Nebenzahl wrote:
On 4/17/2009 7:20 AM Ian Bell spake thus: Sandi wrote: Is it real "tin" that's used? No, it is usually tin/lead alloy, better known as solder. Not any more (post-RoHS). (Solder, yes, but not lead.) Fortunately I stocked up on the real stuff before they banned it ;-) Cheers Ian |
What is the purspose of pre-tinned wire?
"Mike" wrote in message ... "Steve Terry" wrote in message ... "Sandi" wrote in message ... snip Does the tinning-coating replace where copper would have been in the overall wire and tinning is of higher reistence? Is flexibility affected? Tin has a much lower conductivity than copper, and as RF travels on the surface of a conductor, it would attenuate RF and high frequency AC So how high does the frequency have to be for skin effect to matter? (I have killed the cross posts to stop the usual abuse from being seen outside uk.radio.amateur) Mike Beats me? Steve Terry |
What is the purspose of pre-tinned wire?
On 17 Apr 16:22, Salmon Egg wrote:
In article , Pilgrim wrote: Is that why most, but not all, teflon insulated wire was silver plated? My guess is that tinned wire is soldered more easily even after much exposure to unfriendly environments. You do not have any copper oxide to remove. Any crap in the tin flots away and new solder flows in under such crap. That's what I would have thought too. But if pre-tinned (plastic insulated) wire is so useful in this respect then why isn't pre- tinned found more often? I'm not thinking of the use of wire at RF frequencies but as an interconecting wire. I haven't managed to compare the cost of pre-tinned wire identical plain copper wire but I don't ever recall seeing tinned wire and thinking it was unexpectedly expensive. Has anyone got any info from making this comparison in the past? |
What is the purspose of pre-tinned wire?
Sandi wrote:
Some insulated multistrnd copper wire is pre-tinned and a lot is not. What is the purpose of pre-tinned wire? As far as I can see the advantage is that the copper core doesn't oxidise which means the wire can be soldered or fixed to a terminate with only minimal cleaning. Sounds like a good thing to me, so why isn't almost all wire pre- tinned? Is cost really so different? Does the tinning-coating replace where copper would have been in the overall wire and tinning is of higher reistence? Is flexibility affected? Are you certain that its tinned wire you are looking at and not nickel-plated copper? That is often used for high temp applications where the copper alone will oxidize. -- Paul Hovnanian ------------------------------------------------------------------ At some point it becomes necessary to behead all the architects and begin construction. -- Abi-Bar-Shim (Project Mgr. - Great Pyramid) |
What is the purspose of pre-tinned wire?
On Apr 17, 7:18*am, "Steve Terry" wrote:
"Pilgrim" wrote in message ... In article , "Steve Terry" wrote: "Sandi" wrote in message .. . snip Does the tinning-coating replace where copper would have been in the overall wire and tinning is of higher reistence? Is flexibility affected? Tin has a much lower conductivity than copper, and as RF travels on the surface of a conductor, it would attenuate RF and high frequency AC Steve Terry Is that why most, but not all, teflon insulated wire was silver plated? Chuck P. Yes, Silver is one of the few metals that has a lower resistance than copper, but oxidises easily so silver should be covered, PTFE is one of the best coverings. Silver does not oxidize so much as it tarnishes, by picking up sulfur from the air. |
What is the purspose of pre-tinned wire?
Silver does not oxidize so much as it tarnishes,
by picking up sulfur from the air. Same thing. Chemically, it's oxidation. Silver cleaners/polishes are reducing agents (eg, Tarn-X). |
What is the purspose of pre-tinned wire?
On Fri, 17 Apr 2009 04:14:40 +0100, Sandi wrote:
Some insulated multistrnd copper wire is pre-tinned and a lot is not. What is the purpose of pre-tinned wire? As far as I can see the advantage is that the copper core doesn't oxidise which means the wire can be soldered or fixed to a terminate with only minimal cleaning. Sounds like a good thing to me, so why isn't almost all wire pre- tinned? Is cost really so different? Does the tinning-coating replace where copper would have been in the overall wire and tinning is of higher reistence? Is flexibility affected? The best I can remember was that the original plastic coating first used when the cloth covering was abandoned was somewhat corrosive adding to the problems of exposure to other corrosive elements including poor annealing of the core wires and would usually result in you having to scrape the wire ends before trying to solder them since the wire was usually oxidized enough to interfere with proper solder adhesion off the spool new. Tinning did away with this aggravation and the need to use corrosive flux to get a proper solder joint. Though some of the early tinning was poor quality and corroded also. Early tinned wire was slightly stiffer and a tinned stranded conductor was almost as stiff as a solid wire. with thinner plating techniques this is not the case any more except for much of the wire made in the far east. This was usually offset by going to a smaller gauge wire. Most early primary electronic wiring was originally something between 14 and 16 ga. with tinned wires this became 18 to 20 ga. in most cases. Gnack |
What is the purspose of pre-tinned wire?
On Fri, 17 Apr 2009 15:20:00 +0100, Ian Bell
wrote: Sandi wrote: On 17 Apr 04:49, Ross Herbert wrote: On Fri, 17 Apr 2009 04:14:40 +0100, Sandi wrote: :Some insulated multistrnd copper wire is pre-tinned and a lot :is not. : :What is the purpose of pre-tinned wire? As far as I can see :the advantage is that the copper core doesn't oxidise which :means the wire can be soldered or fixed to a terminate with :only minimal cleaning. : :Sounds like a good thing to me, so why isn't almost all wire :pre- tinned? : :Is cost really so different? : :Does the tinning-coating replace where copper would have been :in the overall wire and tinning is of higher reistence? : :Is flexibility affected? As you surmised, the answer is cost. It is not the cost of the tin itself but the additional process and handling which adds to the complexity of production. The copper conductor wire gauge is not made smaller where tinning is not applied and the added few microns of tin would not affect resistance/unit length by any significant degree. Flexibility is not an issue. I think that manufacturers realise the majority of termination methods used today rely on crimping or soldering while the copper conductors are clean. Tinned conductors are an advantage where the conductors are secured by screws or wire-wrap although less so for the latter. Insulation displacement techniques are not a problem for untinned conductors. Is it real "tin" that's used? No, it is usually tin/lead alloy, better known as solder. Cheers ian Folks in this discussion need to define "pre-tinned". There is TPC wire, which is individual TIN plated Copper strands made into mutli-stranded wire in the same process as any other stranded wire. There is SPC, which is individual Silver plated Copper strands. It was always my understanding that "pre-tinned" wire was stranded wire that was run through a solder bath and tinned similarly as the 'tinning' one would give the end of a wire in a solder pot. If the wire is this type, it is used in certain industries to reduce production labor costs. It is specifically NOT used in certain other industries due to the problems associated with cinched type termination processes and an effect known as 'solder creep'. TPC is TIN plated, not solder plated. Just like it states. "Pre-tinned wire" IS processed using solder. |
What is the purspose of pre-tinned wire?
On Fri, 17 Apr 2009 20:30:49 +0100, Ian Bell
wrote: David Nebenzahl wrote: On 4/17/2009 7:20 AM Ian Bell spake thus: Sandi wrote: Is it real "tin" that's used? No, it is usually tin/lead alloy, better known as solder. Not any more (post-RoHS). (Solder, yes, but not lead.) Fortunately I stocked up on the real stuff before they banned it ;-) Cheers Ian Sorry, but TPC wire was already RoHS compliant. All the idiots had to do is change the label. TIN is TIN. It doesn't say "SPC" (Solder PLated Wire)... It SAYS TPC TIN Plated Wire. Pretty simple. SPC (Silver, of course) is better anyway... particularly from a shelf life POV. I hate TPC wire that has been around too long. The crap won't even take solder. Give me SPC any day. The cost difference is negligible, if one weighs the added labor cost of dealing with poor quality TPC, which nearly all of it is. |
What is the purspose of pre-tinned wire?
On Fri, 17 Apr 2009 10:07:46 +0100, "Steve Terry"
wrote: "Sandi" wrote in message ... snip Does the tinning-coating replace where copper would have been in the overall wire and tinning is of higher reistence? Is flexibility affected? Tin has a much lower conductivity than copper, and as RF travels on the surface of a conductor, it would attenuate RF and high frequency AC Steve Terry That's why one should use SPC, which is Silver plated Copper. |
What is the purspose of pre-tinned wire?
On Fri, 17 Apr 2009 05:41:50 -0700, Pilgrim wrote:
In article , "Steve Terry" wrote: "Sandi" wrote in message ... snip Does the tinning-coating replace where copper would have been in the overall wire and tinning is of higher reistence? Is flexibility affected? Tin has a much lower conductivity than copper, and as RF travels on the surface of a conductor, it would attenuate RF and high frequency AC Steve Terry Is that why most, but not all, teflon insulated wire was silver plated? Chuck P. Wrong. The customer gets what the customer buys. If all YOU were exposed to was SPC TFE, the THAT was ALL your employer was buying, you dope. TPC was just as prevalent, despite the fact that it sucks on so many levels. |
What is the purspose of pre-tinned wire?
Mr. Haney wrote:
On Fri, 17 Apr 2009 20:30:49 +0100, Ian Bell wrote: David Nebenzahl wrote: On 4/17/2009 7:20 AM Ian Bell spake thus: Sandi wrote: Is it real "tin" that's used? No, it is usually tin/lead alloy, better known as solder. Not any more (post-RoHS). (Solder, yes, but not lead.) Fortunately I stocked up on the real stuff before they banned it ;-) Cheers Ian Sorry, but TPC wire was already RoHS compliant. All the idiots had to do is change the label. TIN is TIN. It doesn't say "SPC" (Solder PLated Wire)... It SAYS TPC TIN Plated Wire. Pretty simple. SPC (Silver, of course) is better anyway... particularly from a shelf life POV. I hate TPC wire that has been around too long. The crap won't even take solder. Give me SPC any day. The cost difference is negligible, if one weighs the added labor cost of dealing with poor quality TPC, which nearly all of it is. Tinned plated wire shouldn't have issues with solder how ever, electro plated may which is normally used more in cases of screw terminals and crimp fasteners. http://webpages.charter.net/jamie_5" |
What is the purspose of pre-tinned wire?
On Fri, 17 Apr 2009 22:35:39 +1000, "Phil Allison"
wrote: "Pilgrim" "Steve Terry" "Sandi" Tin has a much lower conductivity than copper, and as RF travels on the surface of a conductor, it would attenuate RF and high frequency AC Is that why most, but not all, teflon insulated wire was silver plated? ** No. Teflon coated wire intended is for high temp applications. With the sole exclusion of anything related to a nuclear reactor. Teflon turns to powder in that environment, and they (Genral Atomics)do not use it in such settings. You will see it used on the Predator, however. Silver has a much higher melting point than tin ( just a tad below copper) and is more corrosion resistant too. Also, purified Silver Oxide, made in the lab, conducts better than the element itself does. Silver oxide on wires, and other conductive surfaces creates a protective 'patina' on the surfaces that are exposed to the air. In wiring, it does not affect the overall conductivity of the wire. In the lab, it is the top dog. Most conductive element: Silver Most conductive compound: Silver Oxide ..... Phil |
What is the purspose of pre-tinned wire?
On Fri, 17 Apr 2009 15:18:30 +0100, "Steve Terry"
wrote: but oxidises easily so silver should be covered, PTFE is one of the best coverings. Silver oxide is acceptable. It remains as a mechanical part of the surface, and does not adversely affect conductivity. Copper oxide is an unacceptable CRUST on your wire. That is one reason why Sivler was used to plate copper wires. |
What is the purspose of pre-tinned wire?
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What is the purspose of pre-tinned wire?
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What is the purspose of pre-tinned wire?
"Mr. Haney" "Phil Allison" ** No. Teflon coated wire intended is for high temp applications. With the sole exclusion of anything related to a nuclear reactor. ** Wot utterly irrelevant drivel. Silver has a much higher melting point than tin ( just a tad below copper) and is more corrosion resistant too. Also, purified Silver Oxide, made in the lab, conducts better than the element itself does. ** Shame it does not even exist on silver objects or wires. Silver oxide on wires, and other conductive surfaces creates a protective 'patina' on the surfaces that are exposed to the air. ** Absolute ******** !!!!!!!!!!!!! The dark tarnish seen on silver is silver sulphide ( Ag2S ) - which is an insulator. Hanley is just parroting one of the DUMBEST MYTHS floating around the internet and swallowed whole by audiophools. ...... Phil |
What is the purspose of pre-tinned wire?
On Fri, 17 Apr 2009 18:59:48 GMT, (GregS)
wrote: In article , (GregS) wrote: In article , (Dave Platt) wrote: In article , Pilgrim wrote: Tin has a much lower conductivity than copper, and as RF travels on the surface of a conductor, it would attenuate RF and high frequency AC Is that why most, but not all, teflon insulated wire was silver plated? My understanding is that the Teflon-insulated wire uses silverplating for a couple of reasons, related to the high melting point of Teflon (and thus the high temperatures to which the wire is exposed when the Teflon is melt-extruded onto the conductors). I checked looked at a spool of about #20 stranded wire. It does look very shiny like silver. I thought it was odd looking at it. its made up of a tightly twisted center section and a loosly woven outer section around the inner section. The TFE is almost a fluorescent blue. Neat stuff. 19/32 strands. This got to be audio grade ! It is likely SPC and is Mil grade. There is no such thing as "audio grade". You have been talking to too many consumer electronics salespersons. |
What is the purspose of pre-tinned wire?
"Mr. Haney the Halfwit " Silver does not oxidize so much as it tarnishes, Tarnish IS oxide, you dope. ** Hanley is ****ING IMBECILE. ...... Phil |
What is the purspose of pre-tinned wire?
"Mr. Haney the Dickwad " Silver oxide is acceptable. ** But non existent on wires etc. It remains as a mechanical part of the surface, and does not adversely affect conductivity. ** Since it does not exist on wire surfaces, that is true. Hanley is a TOTAL MORON !!! ....... Phil |
What is the purspose of pre-tinned wire?
On Fri, 17 Apr 2009 22:23:26 -0400, Jamie
t wrote: Mr. Haney wrote: On Fri, 17 Apr 2009 20:30:49 +0100, Ian Bell wrote: David Nebenzahl wrote: On 4/17/2009 7:20 AM Ian Bell spake thus: Sandi wrote: Is it real "tin" that's used? No, it is usually tin/lead alloy, better known as solder. Not any more (post-RoHS). (Solder, yes, but not lead.) Fortunately I stocked up on the real stuff before they banned it ;-) Cheers Ian Sorry, but TPC wire was already RoHS compliant. All the idiots had to do is change the label. TIN is TIN. It doesn't say "SPC" (Solder PLated Wire)... It SAYS TPC TIN Plated Wire. Pretty simple. SPC (Silver, of course) is better anyway... particularly from a shelf life POV. I hate TPC wire that has been around too long. The crap won't even take solder. Give me SPC any day. The cost difference is negligible, if one weighs the added labor cost of dealing with poor quality TPC, which nearly all of it is. Tinned plated wire shouldn't have issues with solder how ever, electro plated may which is normally used more in cases of screw terminals and crimp fasteners. Tin plated wire is notorious for NOT taking solder, especially when it is inside teflon. An even worse type is HV wire that is TPC on PTFE. It is worth whatever the difference is to buy SPC, because THAT ALWAYS takes solder. |
What is the purspose of pre-tinned wire?
On Sat, 18 Apr 2009 12:44:08 +1000, "Phil Allison"
wrote: ** Shame it does not even exist on silver objects or wires. One of the only true things I have ever seen you state. |
What is the purspose of pre-tinned wire?
"Mr. Haney" Also, purified Silver Oxide, made in the lab, conducts better than the element itself does. ** Shame it does not even exist on silver objects or wires. Silver oxide on wires, and other conductive surfaces creates a protective 'patina' on the surfaces that are exposed to the air. ** Absolute ******** !!!!!!!!!!!!! The dark tarnish seen on silver is silver sulphide ( Ag2S ) - which is an insulator. Hanley is just parroting one of the DUMBEST MYTHS floating around the internet and swallowed whole by audiophools. ...... Phil |
What is the purspose of pre-tinned wire?
On Sat, 18 Apr 2009 12:44:08 +1000, "Phil Allison"
wrote: The dark tarnish seen on silver is silver sulphide ( Ag2S ) - which is an insulator. Hanley is just parroting one of the DUMBEST MYTHS floating around the internet and swallowed whole by audiophools. It has NOTHING to do with audio you retarded twit, and neither do I. I never made ANY reference to audio EVER in ANY of my responses to ANYONE. I am referring to the days when I made RF chokes from Solid SPC wire. And the prevalent use of it in military radios and other military gear. I do not expect a dope like you to have a clue, being that you are from a place that gets all its military gear from its allies. |
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