Wow, it was my favorite in the eighties in the amplifiers for measurement of fast high power impulse currents. Still have several pieces.
And if you find the unpleasantness solely from the "scientific side" maybe you should question the lens by which you view the world, especially since you like to comport yourself as somehow above everyone else with an air of arrogance that I find more offensive than almost any other poster here.
Remember in chastising folks here, especially bereft of technical content (even anecdotes), you lose all high ground. Ironic that your message is some sort of call to unity while doing so in a completely divisive manner.
So maybe posts about solder so Bob doesn't screw up his amp are a good thing, no?
Unless you mean soldering the wire directly, pure Cu posts are a bad_idea. We want a corrosion free interface and copper reacts with ambient air without a good self-passivation layer. You're likely to find it ends up a worse connection than whatever you have in there now.
I'm not sure if the cardas come with a nickel (most common) or chromium barrier layer that greatly improves gold's adhesion and long term durability from flaking or diffusion. We're talking less than a hundred nm of ni or cr in there to do its job.
You may be right, but that it's tournesols sole talking point in the the whole thread and the lack of change in how his point is written that finally got to me. I'm always so impressed at the quality of English in this forum, but we all have our local flair and way we read things.
Last edited:
Anything on audio reproduction?
Goodbye should mean something and "silently" should mean silent, no?
Are you sure it's not about audio reproduction here?
Bad idea per your view. If you want a forum like that, there is an option of starting one on your own.
And if you find the unpleasantness solely from the "scientific side" maybe you should question the lens by which you view the world, especially since you like to comport yourself as somehow above everyone else with an air of arrogance that I find more offensive than almost any other poster here.
Remember in chastising folks here, especially bereft of technical content (even anecdotes), you lose all high ground. Ironic that your message is some sort of call to unity while doing so in a completely divisive manner.
So maybe posts about solder so Bob doesn't screw up his amp are a good thing, no?
So maybe posts about solder so Bob doesn't screw up his amp are a good thing, no?
Yes! Not screwing things up is a good thing, I know accidents will happen when trying new things, but coming into something fully armed with as much intel as possible is always worth the effort in my book.
I’m sorry if I dumb things down for you fellers, but hey.....we were all dumb once.
I find trying to figure out what tournesol’s meaning to get across is a little bit of a brain teasing puzzle.......good for warding off Alzheimer’s.
Being of French Canadian decent many of my older relatives are a quite rude and brooding bunch.......I do believe it’s just how they are and mean no harm by it.
And yes Daniel I meant soldering directly to the copper output....probably best to scrape the gold plating at the soldering point?
Last edited:
No, the gold there is good, please leave it! Obviously tinned PCB traces are a thing but if the gold layer is already there, it has good wettability to solder and trying to remove it is asking for more trouble than any possible benefit. Enig or enepig are my favorite to hand solder.
Last edited:
Ok thanks,
In the welding world your much better off grinding any plating from the weld point that’s why I asked.
If you don’t mind me asking, why is it better to leave it? Does it help stop corrosion getting up under the solder?
Edit......thanks John, typed that before I saw your post.
I’m not able to do the magnet test right now but will do it tomorrow.
In the welding world your much better off grinding any plating from the weld point that’s why I asked.
If you don’t mind me asking, why is it better to leave it? Does it help stop corrosion getting up under the solder?
Edit......thanks John, typed that before I saw your post.
I’m not able to do the magnet test right now but will do it tomorrow.
Last edited:
Yeah, with solder, like brazing, we're not melting the underlying components and the plating is there to prevent contamination. Although with brazing, it depends on the platings, as they may heat up to the point of diffusing into the solder and poisoning it.
Welding we want to remove all the plating in the HAZ to ensure it doesn't become part of the alloy at the weld joint.
If you're in need of something rather soporific: Solder Joint Reliability of Gold Surface Finishes (ENIG, ENEPIG, DIG)
Welding we want to remove all the plating in the HAZ to ensure it doesn't become part of the alloy at the weld joint.
If you're in need of something rather soporific: Solder Joint Reliability of Gold Surface Finishes (ENIG, ENEPIG, DIG)
Thank you for defending me against DPH's post that I had not read, as he is in my ignore list.
So, I read it, and found-it surrealistic.
You are right that I have a little trouble in English, and, may-be, does not sprinkle enough my interventions with formulas like "It seems to me", "in my book", "as I see things" etc.
That are not, in French, formulas to express any kind of ego, but, on the contrary, tell to take what is said with a pinch of salt, to say it is just a point of view far to be considered by its author as a rule, or himself as an authority.
Arrogant?
In terms of audio and its technologies, there is no one less sure about the value of his own point of view than me. I have spend my all pro life in the domain, half in electronic design, the other half as a sound engineer (not an easy position because it forces you to question yourself constantly ;-), and just try to share my experiences, that I consider neither exceptional nor as carriers of universal truths.
Are we so many here, to have been on both sides of the fence ?
Not surprised by an other personal attack from his part, that is a perfect illustration , once again, of his way to behave with people. And specially with me.
About solder, I do not see how my post Can you hear a difference between 2 solid state preamps?
could be arrogant, however, his way of taking mountainman bob for a totally ignorant and stupid guy is quite a lot, from my point of view.
I go back to silence in this thread, hurt and very embarrassed to be the subject of a conversation and a source of more noise out of topic.
Sorry if some felt personally attacked, I was not aiming anyone but a general atmosphere that perfectly illustrates the response of DPH with his personal attack that, if i was a moderator, i would have immediately erased.
When one feels contempt for someone, one does not answer him ;-)
Last edited:
I'm sure this is true, but sadly shows the state audio electronics design business. There's room for everybody, anybody can claim anything, including those that would not qualify as "designers" in any other electronics industry branches, due to the lack of EE101 knowledge.
Or to put it another way, if I can be misinterpreted online it WILL be misinterpreted
Seems so, given the post above mine! Even Bob understood the lighthearted nature of my quip (and I saw nothing wrong with asking solder questions, except may to not overthink it too much!). Oh well. The other native French speakers here don't seem to have the same issue.
That ignore list must be pretty long; makes for a fine echo chamber, I suppose? In the hopes that Tournesol reads it, selectively chastising one group for being divisive and nasty *is* a strongly divisive method, both by partitioning a whole into groups and pointing at one of them selective nature. It's also a double standard by calling out one group's prickly responses (and often worse) while completely ignoring another group's prickly responses (and often worse). The whole 3 fingers point back at you when you point one at someone has elements of the truth.
I know I come across as stridently incredulous, but at least *try* to back things up with evidence. If people want to do "delirious" things and enjoy them, great, this is for fun. Passing off one's fun as having mechanistic weight, expect incredulity. Encouraging credulous folks to buy into one's suggestions, expect substantial push back. If you have some mass behind the assertions, that's really cool. Saying the same thing again and again quickly gets one into "boy who cried wolf" territory.
- Status
- Not open for further replies.