Fender Magnet gauss

[walters]

Back in the 50's and early 60's like 1950-1964 fender magnets had different magnetic gauss?

The gauss changes the magnetic field?

the gauss changes the frequency responce?

The mixture of the alloys in the magnets back in the days for fender guitars were different mixtures and gauss?

How to measure gauss:
http://www.magnetictherapymagnets.com/gaussmeter.html

 

[walters]

Re: Fender Magnet gauss

Rev do u know about these?

 

[Zerberus]

Re: Fender Magnet gauss

Back in the 50's and early 60's like 1950-1964 fender magnets had different magnetic gauss?

not necessarily when originally charged, but definitely today

The gauss changes the magnetic field?

yes, by changing the strength of the magnet

the gauss changes the frequency responce?

yes, by changing the strength of the magnet

The mixture of the alloys in the magnets back in the days for fender guitars were different mixtures and gauss?

I doubt it @alloy, because AlNiCo1-9 are very specific formulas. THe gauss can be changed by not charging the alnico alloy as strongly... it is very possible to have an A-9 that´s weaker than an A-2, for example..

How to measure gauss:
http://www.magnetictherapymagnets.com/gaussmeter.html

Correct... But gauss is magnetic field strength, nothing more nothing less... no direct correlation to alnico alloy or anything else, except how strong the magnet is.

http://dir.yahoo.com/Science/Physics/Magnetism/

 

[walters]

Re: Fender Magnet gauss

Thanks alot for the information

Fender used Alnico 5 what was the strength?

Did the gauss and strength changes from the years at fender?

Its seems thats the Alnice mixture and strengths were different back in the 50's and 60's why is that?

 

[walters]

Re: Fender Magnet gauss

the gauss changes the frequency responce?

yes, by changing the strength of the magnet



Changing the magnets strength to a higher strength what does it do to the frequency response?

A low magnetic strength what kind of frequency response would it have?

 

[Al Heeley]

Re: Fender Magnet gauss

This from Guitarnuts website:
http://www.guitarnuts.com/wiring/pickups.php


Pickup design/selection issues:
There are far too many variables in pickup design to even approach a thorough treatment of the subject here. However, the following tips will help you understand how pickups affect tone so that you can make a more intelligent decision if considering aftermarket pickups.

* How "hot" the pickup will be depends primarily on two variables; how strong the magnet is, and how many turns of wire are on the coil. However, both of these factors also affect the tonal response of the pickup.
* Any coil of wire is an inductor, and the impedance (total resistance) of an inductor varies with frequency (the higher the frequency, the higher the impedance). When you add more turns of wire to a coil, you are increasing the inductance and thus altering the frequency response. "Overwound" coils and humbuckers usually have less high frequency response (cleverly marketed as "stronger midrange").
* Changing the guage (diameter) of the coil wire changes inductance and thus alters the frequency response of the pickup.
* Changing the size or shape of the coil changes the inductance and thus alters the frequency response of the pickup.
* Coils not only have a certain inductance, they also have a certain amount of "parasitic" capacitance. Different winding techniques will result in slightly different capacitance and thus affect the tonal response of the pickup.
* Making the magnet stronger also has an effect on tone, in that the stronger magnet will generally give a sharper attack and "harder" tone. However, the greatest impediment to simply using very strong magnets to get a very high output is the fact that strong magnets will kill sustain by "dragging" the strings.
* As a generalizaton:
o "Soft" magnet and fewer turns on coil - sweet, bell-like clear tones.
o "Hard" magnet and fewer turns on coil - glassy hot Strat sound.
o "Soft" magnet and more turns (or humbucker) - smooth, buttery midrange.
o "Hard" magnet and more turns (or humbucker) - grunge or "Texas" sound.

 

[walters]

Re: Fender Magnet gauss

Thanks for the information Al Heeley


What is parasitic capacitance?

How do i change the parasitic capacitance?

 

[walters]

Re: Fender Magnet gauss

What is the pickups "Reluctance"?

Whats the pickups "Permeability"?

 

[Al Heeley]

Re: Fender Magnet gauss

Try Google, he is your friend.
Electrical reluctance:
http://en.wikipedia.org/wiki/Reluctance
-is the resistance of a material to a magnetic field.
Permeability:
http://en.wikipedia.org/wiki/Permeability_(electromagnetism)
- the degree of magnetization of a material that responds linearly to an applied magnetic field
Parasitic capacitance
http://en.wikipedia.org/wiki/Parasitic_capacitance
capacitance that is not taken into account when considering ideal circuit elements. This extra capacitance usually has detrimental effects on the operation of "real life" circuits, reducing their bandwidth or enhancing their suceptibility to interference.

 

[walters]

Re: Fender Magnet gauss

Thanks Al Heeley

Can u please Apply these terms to a pickup because these are just definitions can i don't know how to apply them to a guitar pickup for u help apply them? give examples of "Reluctance" and Permeability and parasitic capacitance applying it to the guitar pickup?

 

[JeffB]

Re: Fender Magnet gauss

:searches for toaster and moon chart:

 

[ES350]

Re: Fender Magnet gauss

buy a physics textbook.

 

[Artie]

Re: Fender Magnet gauss

Can u please Apply these terms to a pickup because these are just definitions can i don't know how to apply them to a guitar pickup for u help apply them? give examples of "Reluctance" and Permeability and parasitic capacitance applying it to the guitar pickup?

In order to make these answers meaningful to you, could you describe the conditions under which you require these definitions? Where did you learn the word "reluctance", without understanding it, or its relevance to pickups?

What do you want to accomplish with this information? That way we can taylor the answer to your needs.

 

[walters]

Re: Fender Magnet gauss

What is the pickups "Reluctance"?

Whats the pickups "Permeability"?

What material or what do i do to the pickup to make it have Reluctance and Permeability? what do i do to the pickup to make it have different Reluctance and Permeability?

Can u guys give me examples on Reluctance and permeability? applied to guitar pickups? like what would make reluctance or permeability to a guitar pickup?

 

[Al Heeley]

Re: Fender Magnet gauss

What material or what do i do to the pickup to make it have Reluctance and Permeability? what do i do to the pickup to make it have different Reluctance and Permeability?

All pickups will have some degree of reluctance and permeability, in the magnetic sense.

Can u guys give me examples on Reluctance and permeability? applied to guitar pickups? like what would make reluctance or permeability to a guitar pickup?

1. The wire, its construction, its resistance, its length.
2. The winding density
3. Pickup construction
4. magnet strength
-in fact all the factors that will influence the size, shape and density of the magnetic field produced.
But none of this makes jazz chords any easier to play. Which is a pity.

 

[walters]

Re: Fender Magnet gauss

Thanks Heeley

1. The wire, its construction, its resistance, its length.
2. The winding density
3. Pickup construction
4. magnet strength


How do i "increase" the Reluctance?

How do i "increase" the Permeability?

How do i "decrease" the Reluctance?

How do i "decrease" the Permeability?

 

[Al Heeley]

Re: Fender Magnet gauss

Permeability, as I understand it, is the amount by which something can be magnetised. This will depend on the make up of the metal, the ferrous content and the ability for the metal crystal boundaries to become aligned. The amount by which it can 'hold on' to its magnetism. A metal alloy with only 20% iron content would be low permeability, one with 80% iron would be much higher.

The best explanation i can come up with on Reluctance is, in a pickup system, the amount by which the sinusiodal oscillations of a vibrating string affect and interact with the magnetic field, thereby causing the motion to turn into a current in the wires. This will be directly affected by the strength or density of the magnetic field and the velocity of oscillations of the string, but not the amplitude.
You can think of it as a sort of resistance, if high, then the transfer of oscillation energy from the string into electrical signal from the pickup will be damped: eg: loads of windings, or thick, high resistance wire, or weak magnetic field, poor or distant magnets.
I think thats roughly right.