Introduction and Short Previews of Coming Chapters

  • Donald L. Baker


This chapter offers a preview of results for six methods of systematically creating guitar pickup circuits, including: (1) generating the maximum number of possible series-parallel circuits from unmatched single-coil pickups; (2) the maximum number of circuits from dual-coil humbucking pickups; (3) humbucking pairs, quads, hextets, and octets from matched single-coil pickups; (4) adding tonal choices by reversing individual magnets in matched single-coil pickups; (5) a simplified switching system using a few rules to generate less humbucking circuits from any number of matched single-coil pickups, including for even and odd numbers of matched pickups; and (6) pickup circuits that use variable gains and humbucking basis vectors instead of switching to generate a continuous range of tones. The chapter also gives the reasons for writing a book from patent applications: (1) no one will believe these things can be done until they see the math and examples; (2) it may serve to protect intellectual property from patent thieves; and (3) the US patent office has been hostile to Pro Se patent applicants, improperly citing prior art, to which this book may serve as a testament of proper engineering reasoning, development, and invention.


US Patent Office USPTO Patent Examiner 


  1. Baker, D. L. (2017a). Humbucking switching arrangements and methods for stringed instrument pickups, US Patent Application 15/616,396, filed 7 June 2017, published as US-2018-0357993-A1, 13 Dec 2018, granted as Patent US10,217,450, 26 Feb 2019. Retrieved from
  2. Baker, D. L. (2018b). Means and methods for switching odd and even numbers of matched pickups to produce all humbucking tones, US Patent Application 16/139,027, 22 Sep 2018, published as US-2019-0057678-A1, Feb 21, 2019, granted as U.S. Patent 10,380,986, 08/13/2019. Retrieved from
  3. Baker, D. L. (2019a). Humbucking switching arrangements and methods for stringed instrument pickups, US Patent 10,217,450, filed 7 June 2017, granted 26 Feb 2019. Retrieved from
  4. Eden, S. (2016, July/August). The greatest American invention. Popular Mechanics, 92–99. Retrieved from

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© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • Donald L. Baker
    • 1
  1. 1.TulsaUSA

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