Another Power Article Based On What
- Thread starter Kingrex
- Start date
Call me what you may. When I see a $49 tool???? Most good tools are $490 to $4900. Not $49. I like the way the head seems to work. But the supplied crimps looks like they would smear to mush before the copper wire strands compressed and locked out air.
You shouldn't judge before you've held it in your hand. The square crimping offers advantages, especially with circuit breakers, for example; it has a larger contact surface than round, notched ones. It's standard today in Germany.
I have heard this said. But why. The transformer core is the same size. Just half the amount of windings per phase.
I hear a lot of noise is on the neutral and ground. Have you really hidden from the noise.
Don't you have to design a amplifier to be 240 volt from the ground up to really be a balanced power input that is supposedly seeing less noise from the grid. I was told it would provide no benefit to put a 240 volt input transformer into my Audion 845. I forget why.
I compared using two phases of 230VAC to one phase through an Audio Consulting (3.3KVA) isolation transformer. I cannot confirm that two phases sound better. The isolation transformer has individual taps for both two phase and one phase.
See post 21 by microstrip and go to the Jensen link. Its is a measurable affect to twist conductors.
Agree. Even Ross at Torus told me on the RM20, he thought the 120 volt input was as good or better sounding than a 240 volt input.
I have put a 240 volt unit into the field. But that was because a client had 14 awg high purity copper wire in the wall already. He was lacking dynamics. I opted for a 240 volt Torus to up the ampacity available to the unit as both legs are passing 15 amps to the transformer. The client was very happy. That is the only time I have suggested a 240 volt input on a unit 20 amps and smaller.
I'm not doubting the benefit of twisted conductors. They need to have a consistent twist to work properly if you are looking to RFI and DC from effecting the signal.
I'm not an electrical specialist. This is some the things I have learned from my EE friend about building my own cables.
I use a bobbin with the 3 spools on it and a take off spool driven by a truck winch. And it takes me a about 2 hours for a 500 foot run. Its a PITA.
Well done. It would be more than a PITA I imagine. I don't think most people are going have the patience to make sure the twist is evenly.
Your right. They shove the wires in a drill and let it rip. It can make a fairly tight twist if you take your time, but it has no planetary letoff. This means every time you twist the bundle you also twist the actual wire stand. The same as if you took a piece of wire, put one end in a vice and grabbed the other end with pliers, then turned the wire over 360 degrees. Being a soft metal, you can do this. But you are twisting each strand and putting a lot of strain on the wire in a helical way and deforming the internal structure. The longer the run, the more you torque it over on itself, the more damage you do. If pressed hard enough, you could snap the wire.
...and I think it would be unevenly applied over the entire length of the wire, unless the run was very short.
Yes, my first bobbin did not have planetary letoff and it was getting very sprung quite quickly. I had to remove the spools, turn them over by hand, then reinstall them. The second bobbin had a letoff, but I had to physically manipulate the outer roles each twist. It was a lot of work. The 3rd one, not complete, should work, but I have to reweld the entire frame to fit the new spool holders. I have not bothered to do a such as it takes time and money just to build the tool. Then I have to find a place to rack it all up. And it takes a second person to run the up take spool.
A machine from china designed to do the job is $30,000. Not at all worth it.
Grain orienting also took days to do.
There is cryo treating the wire. But shipping and treatment is a lot of money.
I could also send the wire to Synergistic Research and have them do their thing to it. But again its shipping and cost to treat the wire. And I don't know what it would sound like after going through whatever they would do.
Is it legal to have neutral and phase in a conduit separated from the earth cable conduit in residential installations in the US?
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