As is often the case, Marce knows the knowledge bank,
A quick perusal seems to indicate, to me, that silver plating would be good for a cable clamping system and that this would be compatible with silver plated cable strands.
Spades could also be silver plated and clamped between silver plated contact surfaces.
Would brass be a good substrate?
Would a steel bolt/screw through a steel nut be a suitable clamp force mechanism for the brass clamp?
A quick perusal seems to indicate, to me, that silver plating would be good for a cable clamping system and that this would be compatible with silver plated cable strands.
Spades could also be silver plated and clamped between silver plated contact surfaces.
Would brass be a good substrate?
Would a steel bolt/screw through a steel nut be a suitable clamp force mechanism for the brass clamp?
A really enligthnening read, thanks 🙂
I've found interesting info:
- Tin plated cables and connectors crimping is prohibited, such parts should be soldered.
- The portion of stranded wires that will eventually become a part of the finished solder connection shall be coated with tin-lead solder and cleaned prior to attachment
- Shielding practices and acceptable use of floating shield
You're welcome. 🙂
In theory silver plating will conduct better than gold one and its oxide is still conductive.
Subjectively I don't like much the sound of silver plated copper, it tends to higlight high frequency content, IMHO.
Some consider silver plated copper a superior conductor for digital transmission but I don't have any opinion on it.
BTW Andrew... I LOVE your signature 🙂
Scottish humor? 😉
So how is your average government educated electron supposed to know which way to swim on clockwise or counter-clockwise threads? 😉
Eichmann is the one with no conductive threads on the speaker posts. WBT does use metal threads on speaker posts, but not on their Nexgen RCAs. Both company's ads for threadless connectors suggest that threads are negative. I personally do like Nexgen RCA connectors, but I think it's more due to low mass, high copper design.
Good point - just what are the parasitics we are concerned with?
Resistance from less contact area than the connected conductors.
Resistance from less conductive metals used in the post/plating.
Resistance from corrosion in the contact area.
Micro-arcing from surface irregularities, ala Lightspeed attennuator?
Using counter-clockwise threads north of the equator?
Hard clamping will enhance the conductivity of course, but there will always be some gaps between the contact surfaces.
Contact enhancers fill the gaps with high dielectric oil which stops the arcs and corrosion. Or that silver pudding goo to fill gaps with silver and oil. I think silver swimming in strongly dielectric oil is not as conductive as they would like us to believe, although maybe better than just oil, or nothing.
Biwire posts have 3x the temporary contacts as single pair posts because of the jumpers contacts. So any penalty from using posts should be even more audible.
Eichmann is the one with no conductive threads on the speaker posts. WBT does use metal threads on speaker posts, but not on their Nexgen RCAs. Both company's ads for threadless connectors suggest that threads are negative. I personally do like Nexgen RCA connectors, but I think it's more due to low mass, high copper design.
Good point - just what are the parasitics we are concerned with?
Resistance from less contact area than the connected conductors.
Resistance from less conductive metals used in the post/plating.
Resistance from corrosion in the contact area.
Micro-arcing from surface irregularities, ala Lightspeed attennuator?
Using counter-clockwise threads north of the equator?
Hard clamping will enhance the conductivity of course, but there will always be some gaps between the contact surfaces.
Contact enhancers fill the gaps with high dielectric oil which stops the arcs and corrosion. Or that silver pudding goo to fill gaps with silver and oil. I think silver swimming in strongly dielectric oil is not as conductive as they would like us to believe, although maybe better than just oil, or nothing.
Biwire posts have 3x the temporary contacts as single pair posts because of the jumpers contacts. So any penalty from using posts should be even more audible.
Just a bit.
Funnier is how is the OP going to decide what to do.... is he going to count posts "for" and "against" metallurgy and say "metallurgy matters because the majority of posters think so"?
That would be democratizing science in the worst way.... not that there are any better ways really....
Funnier is how is the OP going to decide what to do.... is he going to count posts "for" and "against" metallurgy and say "metallurgy matters because the majority of posters think so"?
That would be democratizing science in the worst way.... not that there are any better ways really....
Exellent bananas at a very fair price (I buy a lot, and sell the rest)
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They are very hard, so pure copper is definately not true
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They are very hard, so pure copper is definately not true
I've searched also on ETI (Eichmann) website and can't find any statement against metal threads...
IMHO the only reason they use plastic for the threaded part is to reduce metal mass.
In fact ETI phono pods have threaded metallic outer shell.
BTW I never liked the way ETI markets their products, there's always a 'woodoo' like way of presenting things...
OK, thanks anyway.
I disagree, there have been sensible comments and guides on what is important for forming a connection to a wire from a component, this is critical in all areas of electronics and in some it becomes life/mission critical, so there is a whole lot of information out there on how to do it... I thought the NASA guide appropriate as 'Rocket Science' is an oft used phrase in some esoteric audiophile marketing... But you have to remember what often goes for space electronics doesn't always apply on planet earth... we don't have to face such an extreme environment or the vibration of take off....
But then who's going to listen to me I've used these in the past with great results...
Chocbox | Junction Boxes | Screwfix.com
😀
To me this is voodoo
While good quality (high copper content) brass sounds really good, pure copper sounds fuller, more focused with a blacker background. 😉
And how many power amplifiers use screw terminals to get off the pcb? Look in any factory (high temp, vibration etc) and there are thousands of harting connectors and they seem to work well enough.
No, Marce is what one would call 'experienced'. There is a big difference (about 30 years).
No, it's simply a description of what I hear using different metals/metal alloys.
I'm not selling anything and I'm not pretending that anyone trust me blindly, simply try if it works for you too, if you want.
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