Jimi Hendrix Curly Cords?

Started by walters, April 10, 2005, 07:50:50 AM

Previous topic - Next topic

walters

Hi this is Walters

1.) The Curly Cords Have EMF inductance ?
    and Capacitace?
    and resistance?

2.) does Curly Cords have a Center Frequency?

3.) Does Curly Cords a Time Constant because its LRC network
     internal in the material and the shape of the curly cord
    to make it up?

4.) Will Curly Cords Fatten up your sound?

5.) I have notice that the jimi Hendrix Curly Cords are
    really really Fat and Thick not like the Radio shack
    ones they are small looping curly cords

6.) does the Radio Shack smaller looping curly cords
    change the EMF and LRC network ?

7.) where straight cords dont have EMF just Capacitance ?

Cabezahead

those chords actually had more voodoo magic than anything else.

That's a totally different forum.

-CH

Fret Wire

Fret Wire
(Keyser Soze)

R.G.

Curly cords have resistance, capacitance, and inductance.

All electrical components, including wire, have resistance, capacitance, and inductance.

Go search the net for RLC circuits and how to compute their center frequency and time constants.

The inductance in a curly cord is largely neglegible because of the very small area inside the loop of the conductors and the very low frequencies of audio signals. Go search the net for inductance and how to compute it. I won't reproduce it here. Also look for why twisting wires makes them more noise resistant. I also will not reproduce that here. Also look for how to compute inductive reactance as a function of frequency. Those are all things that any electronics education should have included, and which are freely available on the net. Find them.

There is a large capacitance in the long length of the curly coaxial cable. That capacitance is loading down the treble from the guitar pickups, and causing treble loss. It may sound like "thickening" but it's actually treble loss.
R.G.

In response to the questions in the forum - PCB Layout for Musical Effects is available from The Book Patch. Search "PCB Layout" and it ought to appear.

Michael P.

Quote from: Fret Wirehttp://www.lavacable.com/myweb/CableSummit4.pdf

Thanks for that link, Fret Wire. Looks like fun reading for the bathtub - I'll print it out tonight :D

onboard



I was thinking about the water analogy, and the curly cord thing came up, and I remembered this MAD marginal from way back...

Sorry, couldn't resist.
-Ryan
"Bound to cover just a little more ground..."

Karmasound

Why we are talkin cords.


What is the deal with these?

http://www.vansevers.com/main.html


check out the cables and resonators section


:?

octafish

Dan Auerbach (The Black Keys) swears by curly cords, he says they are much more unlikely to pull out because you stepped on them when jumping around on stage.
Shoot straight you bastards. Don't make a mess of it. -Last words of Breaker Morant

walters

1.) The curly cord acts like a Coil inductor EMF and Flux

2.) As the Current goes through the Curly cord it produces
    an electromagnetic Field


3.) When the Current Changes throught the Curly cord, the electromagnetic field also changes

4.) The curly Cord has a Different Time Constant than a Straight Cord

5.) The Curly Cord has a Different impendance than a straight cord

6.) The Curly Cord has a Different Reactance than a straight cord

7.) The Curly Cord is Frequency Dependant

8.) an example for jimi hendrix using a univibe with a Curly cord

    The Univibe output is always changing its Frequency and voltage
    and Current going threw the Curly Cord this effects the whole
    sound that jimi hendrix had it make it sound way different
    that using a Straight Cord.
9.) The Curly Cord has EMF and a impendance,reactance,time constant
     this is like a Passive Phase Shift embedded in the Curly cord

10.) When the Univibe output is changing its frequency up and down
      and the LFO has a rate of change voltage effect when the frequency
      goes up the rate of change voltage is different than if the frequency
      goes down this voltage will be different

Rate of change Rules
       1.) Freq goes UP    
       2.) rate of change voltage ?

       1.) Freq goes Down
       2.) rate of change voltage?

11.) This rate of change from the LFO rate and the Frequencys
     from the Phase shift circuit will make the Curly cord Frequency
      dependent causing a Voltage lag or lead and a Current lag or lead
     this give the Whole jimi hendrix sound

onboard

Quote from: walters1.) The curly cord acts like a Coil inductor EMF and Flux

So the diameter of the curls would be a factor in the equtions, like including the the behavior of series coils? This is way over my head, but I'm curious.

I know current through *any* coductor produces an EMF, but is there any appreciable audio effect created by uniform circular (albeit spiral) lines of force?

Maybe it's no mystery, but a good topic.
-Ryan
"Bound to cover just a little more ground..."

walters

1.) yes it from the magnetic Field consists of Flux lines

2.) the number of lines of force in a magnetic field determine
    the Value of the Flux.

3.) The Greater the Flux the Stronger the magnetic Field is?

4.) Current Produces a magnetic Field called a Electromagnetic field
    around a conductor

5.) Magnetic lines of force are in Concentric Rings

6.) The Direction of the Magnetic lines of Force surrounds the conductor

onboard

Do the concentric rings formed by the lines of force become spheres if the axis is coiled?

Would the cord EMF effect the behavior of the guitar pickup coils, or it it too weak?

Is there cross-talk between speaker magnet, EMF surrounding the cord, and the pickup coils - assuming close enough proximity?

In other words, will surrounding electromagnetic fields be effected by the curly cord?

Sorry for all the questions.
-Ryan
"Bound to cover just a little more ground..."

walters

Do the concentric rings formed by the lines of force become spheres if the axis is coiled?
            1.) Yes it Cross Talks the Flux and make it stronger

Would the cord EMF effect the behavior of the guitar pickup coils, or it it too weak?
            1.) it can if it was uninsulated it can pick up the Flux of both
                get alot of noise that way i bet

Is there cross-talk between speaker magnet, EMF surrounding the cord, and the pickup coils - assuming close enough proximity?
             1.) yes and a wah wah choke in the wah wah can induce
                  noise to it
             2.) Laying cords next or ontop of it can make a cross talk
                  this can make some random interment sounds running
                  around your studio trying to find the where is the
                  cross talk at ?
In other words, will surrounding electromagnetic fields be effected by the curly cord?
               1.) yes it can it depends on how strong the waves are
                    of the electromagnetic fields are going to join the
                    flux in the curly cords

1.) Can i ask what are u trying to do with this information
     but i like all your questions u can ask me more

onboard

Quote from: walters1.) Can i ask what are u trying to do with this information

Just trying to learn something. I should read all I can find about electromagnetic fields and their effects on each other.

If the curly cord induces passive phase shift (?) and you put that together with a Univibe, I wonder if they are working together or against each other.
-Ryan
"Bound to cover just a little more ground..."

zachary vex

curly cords don't have enough LCR to do much in the audio band.  any cord (longer is more) has capacitance.  that basically serves to cause the sparkly high-end to die.  Jimi did not get some special sound because of his curly cords.  he got a lot of RF interference, a dull top-end, and some cool bouncy visuals.

Toney

Quote from: waltersHi this is Walters

5.) I have notice that the jimi Hendrix Curly Cords are
    really really Fat and Thick not like the Radio shack
    ones they are small looping curly cords

6.) does the Radio Shack smaller looping curly cords
    change the EMF and LRC network ?

Familiar with Radio Shack Walt?
Where do you live? Just curious.......