pick-ups

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  • Lorenzo
    Forum Mentor
    Past Site Supporter
    • Mar 2014
    • 576
    • ROME, ITALY

    #1

    pick-ups

    Any insight into building this parts from scratch? Has anybody managed to build some like it was done for the igniters?
    Thanks
  • Lorenzo
    Forum Mentor
    Past Site Supporter
    • Mar 2014
    • 576
    • ROME, ITALY

    #2
    After all an LM139 could be used to feed square pulses to the igniter transistors gates...

    Comment

    • ukjules
      Forum Sage
      • Jan 2015
      • 1225
      • Somerset, UK

      #3
      Did you.manage to build pickups from scratch ?
      Beyond me such a quest but if you are electrickery minded ........
      Would you build all - the metal work etc too ?

      Most may say why do this ? Not.me as if you can
      and have the inclination go to it .....
      I am.all for making do and making oneself.
      UKJULES
      ---------------------------------
      Owner of following bikes:
      1980 Suzuki GS550ET
      1977 Yamaha RD 250D
      1982 Kawasaki GPZ 750 R1
      1980 Suzuki GSX 250E

      Comment

      • Lorenzo
        Forum Mentor
        Past Site Supporter
        • Mar 2014
        • 576
        • ROME, ITALY

        #4
        No Jules, I haven't build it yet and as far as being "electrickery minded" I do not go much far beyond your average Arduino/ESP32 programming. Mine really was a [sort of] R.F.C. but I'm willing to go my way anyway. As for the building, yes, it will have to be made from scratch. So far this are the possible candidates: an Hall effect transistor for picking up the signal from the rotor tabs, another transistor for generating the square wave pulses [LM139] and [few] ancillary components. Next step is to rig something on a prototyping board and go from there.
        Thanks
        Last edited by Lorenzo; 07-09-2024, 04:30 AM.

        Comment

        • Lorenzo
          Forum Mentor
          Past Site Supporter
          • Mar 2014
          • 576
          • ROME, ITALY

          #5
          Hall effect sensor, only if it can be fed in tension by the same two wires which carry the signal; to be researched

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          • Lorenzo
            Forum Mentor
            Past Site Supporter
            • Mar 2014
            • 576
            • ROME, ITALY

            #6
            Or maybe something as simple as an induction coil? Mmh

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            • Cipher
              Forum Sage
              • Mar 2016
              • 3127
              • Toronto Ontario

              #7
              P90s ? Humbuckers?
              1983 GS 550 LD
              2009 BMW K1300s

              Comment

              • Lorenzo
                Forum Mentor
                Past Site Supporter
                • Mar 2014
                • 576
                • ROME, ITALY

                #8
                Thanks Cipher, I'll look onto them;
                in the case of an inductive coil, the shaping of the pulse, should than be in charge of the igniter's transistors, given the discreteness of the pulser coils package
                Will have to look at the reverse engineering job done in the igniter replica, on this board my member Bwringer[?] and se what kind of transistors are used there.

                Comment

                • Lorenzo
                  Forum Mentor
                  Past Site Supporter
                  • Mar 2014
                  • 576
                  • ROME, ITALY

                  #9
                  The fact that the bike exhibits a behaviour that can be matched to the coils reaction to prolonged heat, I.E. loss of efficiency and power, might hints we're headed to the right direction.

                  Comment

                  • Lorenzo
                    Forum Mentor
                    Past Site Supporter
                    • Mar 2014
                    • 576
                    • ROME, ITALY

                    #10
                    Originally posted by Cipher
                    P90s ? Humbuckers?
                    You Is not pulling me leg, are you?
                    Antway I'm glad this post take some One entertained

                    Comment

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