Blues Setup

galnpdx
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Sat Jul 25, 2009 12:55 pm

Ill leave the subject on this, as said there are various types single coils the same goes for Buckers, or there be no reason to have one type, one maker one style. Not all do or sound the same.
As for quoting Wiki ,Ill grab a dictionary quote or quote someone say like Thomas Jefferson too, doesnt mean I dont know anything about the consitution.
Being your the "expert" and the guitars on my wall will and wont do what you say they can or cant, I will digress future electronical advise to those that like to be the man.


KennyF
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Sat Jul 25, 2009 3:37 pm

galnpdx wrote:
Ill leave the subject on this, as said there are various types single coils the same goes for Buckers, or there be no reason to have one type, one maker one style. Not all do or sound the same.
As for quoting Wiki ,Ill grab a dictionary quote or quote someone say like Thomas Jefferson too, doesnt mean I dont know anything about the consitution.
Being your the "expert" and the guitars on my wall will and wont do what you say they can or cant, I will digress future electronical advise to those that like to be the man.
Are you on medication, or what? Image


haoli25
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Sat Jul 25, 2009 7:37 pm

To further muddy the waters......

Most single coil pickups are capacitive. The amount
of capacitance can be offset by a parallel inductor
across each pickup.

Most 'Humbuckers' are reactive. The amount of the
reactance can be offset by adding a parallel capacitor
across each pickup.

The correct value of those components and can only be
determined through weighted measurement with a very
accurate spectrum analyzer. (NO, not the one with the
little flashing LEDs)

The procedure is very expensive, but many of the pros
say that the increase in performance, even on custom made
pickups, makes it well worth it. True resonance is always
elusive and never cheap.


KennyF
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Sun Jul 26, 2009 5:40 am

Sounds interesting. Care to elaborate?


AndyT
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Sun Jul 26, 2009 6:08 am

haoli25 wrote:

The correct value of those components and can only be
determined through weighted measurement with a very
accurate spectrum analyzer. (NO, not the one with the
little flashing LEDs)

The procedure is very expensive, but many of the pros
say that the increase in performance, even on custom made
pickups, makes it well worth it. True resonance is always
elusive and never cheap.
Hmmm... I know a bit about electronics and there are many ways to skin a cat. I can use a nice multimeter to measure the level of capacitance or resistance on a circuit. Not difficult at all. If you want the circuit to resonate at a given frequency, then simply adjust the input signal to the frequency desired. Especially if you 'pulse the wave'. This would force the signal into a resonant pattern that can be used to amplify without using more power. Sort of a 'super coil'. The electronics would not be overly complex and it would allow you to overdrive any coil simply by flipping a switch. Now theres some crunch for you.


haoli25
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Sun Jul 26, 2009 8:13 am

The idea Andy is to re-shape the magnetic field and
tune the coil to a specific range of frequencies.
Basically, the idea is turn the pickup(s) into a
very frequency specific, highly directional microphone.
Since a multimeter will only measure 'peaks' it is not
suitable for these adjustments. Even a true RMS meter
or an oscilloscope will give only clouded results as
you might clip off either the highest or lowest frequencies
that the guitar can produce that are not always visible
in the time domain due to the 'ringing' effect. It
really requires the precision of a spectrum analyzer
to make it work correctly.


I didn't intend for this to get quite so technical. And
for 99.9% of us this will never be an issue because many
quitar pickups sound pretty darned good right off the shelf.
But to those very few, there is a way to make an "Off the
rack" pickup into a SuperBeast and it's not just limited
to the Samboras and Van Halens that have more money than
good sense.


KennyF
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Sun Jul 26, 2009 9:03 am

haoli25 wrote:
The idea Andy is to re-shape the magnetic field and
tune the coil to a specific range of frequencies.
Basically, the idea is turn the pickup(s) into a
very frequency specific, highly directional microphone.
Since a multimeter will only measure 'peaks' it is not
suitable for these adjustments. Even a true RMS meter
or an oscilloscope will give only clouded results as
you might clip off either the highest or lowest frequencies
that the guitar can produce that are not always visible
in the time domain due to the 'ringing' effect. It
really requires the precision of a spectrum analyzer
to make it work correctly.


I didn't intend for this to get quite so technical. And
for 99.9% of us this will never be an issue because many
quitar pickups sound pretty darned good right off the shelf.
But to those very few, there is a way to make an "Off the
rack" pickup into a SuperBeast and it's not just limited
to the Samboras and Van Halens that have more money than
good sense.
Is this specific to each guitar as a complete unit? Or just the pots, caps, switch and wiring?


AndyT
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Sun Jul 26, 2009 2:37 pm

All of it would be to the electronics, but it would have to take the entire magnetic profile of the guitar into account as well.

You could still get pretty much the same result the way I outlined. In effect, you would be increasing the sensitivity within the field envelope, instead of tuning the envelope itself. Different approach, but still workable.


goldleaf
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Sun Jul 26, 2009 4:26 pm

Has anyone had any experience with removing say 1/32" of fretboard in front of your frets to make it easier to barr chords. I assume you would have to file or sand with a round sanding drum or equivalent to get a depression say 1/8" in front of the fret barr. Seems like it would make it easier to finger chords especially if you have difficulty with hand strength or other problems griping. Gary


BigBear
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Sun Jul 26, 2009 6:11 pm

goldleaf wrote:
Has anyone had any experience with removing say 1/32" of fretboard in front of your frets to make it easier to barr chords. I assume you would have to file or sand with a round sanding drum or equivalent to get a depression say 1/8" in front of the fret barr. Seems like it would make it easier to finger chords especially if you have difficulty with hand strength or other problems griping. Gary
Gary- I think what you're talking about is called scalloping. There was a thread going around here a couple of weeks ago that discussed screwing up a beautiful guitar just for better fretbaord "action".

Neil jumped in at the end and stated flatly that it was a terrible idea. Good enough for me although I'd never consider doing it to one of my instruments.

I actually saw it on a Telecaster recently in an instructional video on playing blues lead. The guy that was playing clearly didn't need any help- we was a blazer!

Happy playin'


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