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Old 1st February 2004, 10:26 AM   #1
Vortex is offline Vortex  Hungary
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Question Fully silver hard wired

Re all.


Is there any need in your opinion to hard-wire a 2A3 triode-based SE Class A amp with completely silver cables? (Except power and output transformers.)

Does it have any effect on the sound, like lots of high-end fanatics agree in ?

What are their opinion based on? Just blinded of the ultra-high price ("oh it must be ultra high-end") or what ?

The well known skin-effect comes at first at so much higher frequencies which is completely not even inaudible, but insensible for our ears. And here I'm talking about MHz frequencies, not 100KHz or even lower)..

So what could be the reason for some brands to use everything inside their amplifiers in pure silver ?

And they say, it works. Still better.

Is it REAL and measurable, feelable, or is it nothing else than simple psychoacoustic?
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Old 1st February 2004, 11:02 AM   #2
Jax is offline Jax  Sweden
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In my opinion, use a little thicker copper instead. The skin depth at 20 kHz is just below 0.5mm (37% point) in copper, not much different in silver.

Output transformers with silver wire makes sense though.

Others mileage will vary
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Old 1st February 2004, 02:52 PM   #3
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Use whatever you think is best.

http://www.pmillett.addr.com/images/ax_wire.pdf

I did some calculations yesterday for 3 inches (76mm) of 18 guage wire.
silver: 1.47 milli-ohms
copper: 1.60 milli-ohms

I'm going to use silver--because of the novelty, and because it is slightly better for electrical and thermal conductivity. Silver wire does not add that much to the total cost of my project.

The one bad thing I've read about silver is that it can migrate (but you'll have to do you're own research about that...I'm not worried at this point).


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Old 1st February 2004, 03:24 PM   #4
Vortex is offline Vortex  Hungary
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Yeah,


I think I will also use teflon insulated silver cable, to be exact, this one:

Kacsa Audio Hungary

(It's in English, click on the left on Neotech cable -> Inner cable. Type SHUW)

I hope it will be enough regarding thickness. 0,31 mm2 ... if not, I'll double wire that point I think, I mean, with two of these.



Another question: about how long should be bought from such a cable ? Not exactly, just in common, while building a tube amp.
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Old 1st February 2004, 03:49 PM   #5
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Quote:
Originally posted by Vortex
Another question: about how long should be bought from such a cable ? Not exactly, just in common, while building a tube amp.
Sorry, I don't understand your question. If it relates to tubes, I'm not sure I can help.

Quote:
I think I will also use teflon insulated silver cable, to be exact, this one:

Kacsa Audio Hungary

(It's in English, click on the left on Neotech cable -> Inner cable. Type SHUW)
Got it. Looks good. I guess 0,31 mm2 is about 22 gauge (AWG). I'm think of buying bare silver wire and Telfon tubing seperately. I think it will be easier to work with (stripping etc.).

Quote:
I hope it will be enough regarding thickness. 0,31 mm2 ... if not, I'll double wire that point I think, I mean, with two of these.
hehehe...well, I'm going to use two wires (if I can). One wire across, don't cut, and the same wire back. Some people claim that wire has directionality. So, to get rid of that have the wire go back and forth in different directions (to make the path bi-directional).


JF
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Old 1st February 2004, 04:05 PM   #6
Magura is offline Magura  Denmark
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I use teflon insulated silver plated multistrand copper wire.

I works great :-)

I dont use it for the sake of the silver though, but because the quality is high and i got it cheap. Bought more than 1KM of it

It is usually expensive. A friend of mine in sweeden used to buy it somewhere in england for something like 3 usd per meter. I got it for a fraction of that.

It has one major benefit, and thats the insulation. Its great that its not sensitive to heat/- solder/- soldering irons.

It makes great interconnects as well....on par with the best commercial interconnects ive heard.

Magura
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Old 1st February 2004, 05:11 PM   #7
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I just wonder why no one here has yet used hi-temp superconductor and a bath of LN. It'd be a hell of a lot cheaper.

Tim
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Old 1st February 2004, 05:47 PM   #8
Vortex is offline Vortex  Hungary
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Quote:
Another question: about how long should be bought from such a cable ? Not exactly, just in common, while building a tube amp.
johnferrier: I don't know, how much from any type of cable will be used to hard-wire a DIY amp. 2 meters ? 20 ? (inches for you of course, I think ) ...


That's it.


Just in common, no exact lenght.


So I just need an estimated length of ALL wires inside of a tube amp, it depends on the design of course and circuit diagram ... therefore it shouldn't be exact (cannot be).

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Old 1st February 2004, 05:51 PM   #9
Vortex is offline Vortex  Hungary
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Tim,

What does "LN" mean ?

Because of my bad English I cannod decide now, if your posting was ment ironic (?) or not.

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Old 1st February 2004, 06:03 PM   #10
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Quote:
Originally posted by Vortex


johnferrier: I don't know, how much from any type of cable will be used to hard-wire a DIY amp. 2 meters ? 20 ? (inches for you of course, I think ) ...
Ok. Got it. I'm going to order 5 feet (1.5 meters) of 17 gauge uninsulated silver. (And shorter pieces of 21 and 23 gauge.) This is for a 9"x6"x5" (23x15x13 cm) headphone amplifier. Pretty sure that I'll have enough wire.


Quote:
What does "LN" mean ?
Liquid Nitrogen. And I'm not sure if Tim understands what he is saying either.


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