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  1. #41
    Les Paul Forum Member
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    Re: Koss and PG outputs

    Because the resistance is the easiest thing to measure. Impedance would be difficult to meaningfully measure/calculate, and at what frequency?

    Inductance and field strength figures could be interesting.

  2. #42
    Les Paul Forum Member EpiLP1985's Avatar
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    Re: Koss and PG outputs

    Edit: Found the hyperlinks.

    Electronics for Guitarists, Dailey, Chapter 2:

    http://www.springer.com/cda/content/...010-p174534208

    The Science of Electric Guitars and Guitar Electronics, Lahdevaara (Chapter 2, 3, and 4 are the highlights for this conversation):

    https://www.google.com/url?sa=t&rct=...IXKp5L72Ymb3Zz
    Last edited by EpiLP1985; 11-16-17 at 05:03 AM.
    "We are what we repeatedly do. Excellence, therefore, is not an act, but a habit." Aristotle

  3. #43
    Les Paul Forum Member
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    Re: Koss and PG outputs

    Looks interesting. I'll download and have a read, thank you!

  4. #44
    Les Paul Forum Member Fried okra's Avatar
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    Re: Koss and PG outputs

    Not exactly Pearly's specs per say. But I found this interesting.

    http://guitarnuts2.proboards.com/thread/7762/seymour-duncan-pearly-analysis-review
    Last edited by Fried okra; Today at 00:00. Reason: No reason, just felt like making it look like I edited it.



    "I just try to keep my fingers between the binding". Tom Wittrock

    He plays with feel (yeah, the sloppyness is a good thing for his style) and he's got tone to die for. He ain't no Petrucci or Vai. They got the technique down but no soul and no tone. - Hoss

  5. #45
    Les Paul Forum Member EpiLP1985's Avatar
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    Re: Koss and PG outputs

    I'm working up an Excel sheet right now that should be able to receive pickup and control circuit specs and gives some outputs on frequency, voltage, etc. More to follow. Could be a nice tool to use for data input and some interesting plots and figures.
    "We are what we repeatedly do. Excellence, therefore, is not an act, but a habit." Aristotle

  6. #46
    Les Paul Forum Member
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    Re: Koss and PG outputs

    On a related not there's a series of videos on guitar electronics here:

    https://www.youtube.com/watch?v=W8dp9clGe-I


    He's putting exciter coils over the pickups and using a sweep gen/spectrum analyser to view the effect of pots, tone controls etc. So not making use of the whole pickup, just straight induction into the coils.

    @Fried Okra - that's an interesting article on the Pearly Pup's.

  7. #47
    Les Paul Forum Member EpiLP1985's Avatar
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    Re: Koss and PG outputs

    This a sheet i've been working on since yesterday. It isn't fleshed out completely yet.

    I'm looking to get some frequency plot type stuff together for the pickups and tone circuits and i'm working through developing the Bode plot functions in Excel.

    Circuit Modeler.jpg
    "We are what we repeatedly do. Excellence, therefore, is not an act, but a habit." Aristotle

  8. #48
    Les Paul Froum Member duaneflowers's Avatar
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    Re: Koss and PG outputs

    Quote Originally Posted by EpiLP1985 View Post
    This a sheet i've been working on since yesterday. It isn't fleshed out completely yet.

    I'm looking to get some frequency plot type stuff together for the pickups and tone circuits and i'm working through developing the Bode plot functions in Excel.

    Circuit Modeler.jpg
    That looks great!!

    A few more components to consider measuring would be pot readings at 0, 5 & 10, more specifics about the wire (copper core size/ resistance & the thickness/type of the enamel insulation), magnet specifics (type/gauss) & cap type/specs.


    While minor, they might add to the sonic fingerprint.
    Tone To The Bone!
    LP=[(CC*8)+(Sig*5)+(R9*2)+R8+R7+R6+(R4*2)+(50sT*2)+Stu D+LPX]+[(EpI*19)+(EsP/Ed*6)+(ToKi*3)+(Ba*3)+(Fe/Bu*2)+(ObG)+(CMS)]

  9. #49
    Les Paul Forum Member EpiLP1985's Avatar
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    Re: Koss and PG outputs

    Quote Originally Posted by duaneflowers View Post
    That looks great!!

    A few more components to consider measuring would be pot readings at 0, 5 & 10, more specifics about the wire (copper core size/ resistance & the thickness/type of the enamel insulation), magnet specifics (type/gauss) & cap type/specs.


    While minor, they might add to the sonic fingerprint.
    Definitely. It’s a work in progress. Hopefully it can be a useful tool.
    "We are what we repeatedly do. Excellence, therefore, is not an act, but a habit." Aristotle

  10. #50
    Les Paul Forum Member sws1's Avatar
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    Re: Koss and PG outputs

    Quote Originally Posted by duaneflowers View Post
    That looks great!!

    A few more components to consider measuring would be pot readings at 0, 5 & 10, more specifics about the wire (copper core size/ resistance & the thickness/type of the enamel insulation), magnet specifics (type/gauss) & cap type/specs.


    While minor, they might add to the sonic fingerprint.
    And don't forget...bobbin color affects tone too.
    ;)

  11. #51
    Les Paul Froum Member duaneflowers's Avatar
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    Re: Koss and PG outputs

    Quote Originally Posted by sws1 View Post
    And don't forget...bobbin color affects tone too.
    ;)
    nyuk, nyuk, nyuk
    Tone To The Bone!
    LP=[(CC*8)+(Sig*5)+(R9*2)+R8+R7+R6+(R4*2)+(50sT*2)+Stu D+LPX]+[(EpI*19)+(EsP/Ed*6)+(ToKi*3)+(Ba*3)+(Fe/Bu*2)+(ObG)+(CMS)]

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