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Tweak Fuzz Double-Tweak Mod

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  • #16
    Re: Tweak Fuzz Double-Tweak Mod

    thanks for the info & will do!

    Comment


    • #17
      Re: Tweak Fuzz Double-Tweak Mod

      mine had a volume drop when engaged unless the level was wide open
      the volume mod corrected that
      replaced a resistor and jumped another

      the mods made mine much more useable
      EHD
      Just here surfing Guitar Pron
      RG2EX1 w/ SD hot-rodded pickups / RG4EXFM1 w/ Carvin S22j/b + FVN middle
      SR500 / Martin 000CE-1/Epiphone Hummingbird
      Epiphone Florentine with OEM Probuckers
      Ehdwuld branded Blue semi hollow custom with JB/Jazz
      Reptile Green Gibson Custom Studio / Aqua Dean Shire semi hollow with piezo
      Carvin Belair / Laney GC80A Acoustic Amp (a gift from Guitar Player Mag)
      GNX3000 (yea I'm a modeler)

      Comment


      • #18
        Re: Tweak Fuzz Double-Tweak Mod

        I added an LED so I can tell when the lower Tweak knob is selected.




        I'm like a crazy cat lady, but instead of cats it's Tweak Fuzz units. The gold one is an EJ FF (BC183) with an external bias pot. The left footswitch is bypass and the right switch will select between 2 preset input caps. I need to come up with a plan for the lower-right unit.

        stilwel
        My YouTube Videos click HERE
        My Soundclick Site for Audio Clips click HERE

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        • #19
          Re: Tweak Fuzz Double-Tweak Mod

          Video of my Tweak Fuzz with EJ mods (BC183 transistors).

          stilwel
          My YouTube Videos click HERE
          My Soundclick Site for Audio Clips click HERE

          Comment


          • #20
            Re: Tweak Fuzz Double-Tweak Mod

            That is some really good EJ tone...nice!
            Dave, Ambassador/Writer/Artist for Seymour Duncan

            Comment


            • #21
              Re: Tweak Fuzz Double-Tweak Mod

              Hi ArtieToo.
              Thank you very much for your electronic scheme which is the only one I found on the internet for the tweak fuzz. I'd like to make one by my self, but the C1 value is missing. I've seen pictures of this capacitor but it's verry small and I can't see anything, could you help me ?
              I'd realy like to have this Fuzz and it's imposible to find it in France.

              Comment


              • #22
                Re: Tweak Fuzz Double-Tweak Mod

                Originally posted by Supmas View Post
                Hi ArtieToo.
                . . . but the C1 value is missing.
                It's on my diagram. (Upper left corner.) C1 is 4700pf, which is 4.7 nf, which is .0047 uf. Don't mistake that for .047uf. Caps are never listed in nanofarads, so look for either .0047uf or 4700pf.

                P.S. Now I wish I hadn't sold my TweakFuzz.
                Last edited by ArtieToo; 02-28-2017, 09:21 AM.

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                • #23
                  Re: Tweak Fuzz Double-Tweak Mod

                  Originally posted by ArtieToo View Post
                  It's on my diagram. (Upper left corner.) C1 is 4700pf, which is 4.7 nf, which is .0047 uf. Don't mistake that for .047uf. Caps are never listed in nanofarads, so look for either .0047uf or 4700pf.

                  P.S. Now I wish I hadn't sold my TweakFuzz.
                  Thank, I'm aware about F, nF and pF
                  I've understood that C1-C6 and R1-R6 on the top left was for the Tweak selector. It's still missing the other C1 and which transistor between Q1 or Q2 is the 4401.

                  Click image for larger version

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                  • #24
                    Re: Tweak Fuzz Double-Tweak Mod

                    Nevermind
                    EHD
                    Just here surfing Guitar Pron
                    RG2EX1 w/ SD hot-rodded pickups / RG4EXFM1 w/ Carvin S22j/b + FVN middle
                    SR500 / Martin 000CE-1/Epiphone Hummingbird
                    Epiphone Florentine with OEM Probuckers
                    Ehdwuld branded Blue semi hollow custom with JB/Jazz
                    Reptile Green Gibson Custom Studio / Aqua Dean Shire semi hollow with piezo
                    Carvin Belair / Laney GC80A Acoustic Amp (a gift from Guitar Player Mag)
                    GNX3000 (yea I'm a modeler)

                    Comment


                    • #25
                      Re: Tweak Fuzz Double-Tweak Mod

                      Ah! That C1. I believe that's called a "miller" capacitor. It's probably going to be in the 150pf range. Unfortunately, I can't check for sure because I no longer have my Tweakfuzz.

                      Comment


                      • #26
                        Re: Tweak Fuzz Double-Tweak Mod

                        Originally posted by ArtieToo View Post
                        Ah! That C1. I believe that's called a "miller" capacitor. It's probably going to be in the 150pf range. Unfortunately, I can't check for sure because I no longer have my Tweakfuzz.
                        Crap ; Anyway thank you for helping.
                        And if someone knows exactly what "this C1" is, I'm still interested.

                        Comment


                        • #27
                          Re: Tweak Fuzz Double-Tweak Mod

                          The C1 miller capacitor is there to reduce gain at high frequencies to reduce harshness.

                          Try something between 33pf and 150pf. This cap is not typically installed on a vintage fuzz face pedal.
                          stilwel
                          My YouTube Videos click HERE
                          My Soundclick Site for Audio Clips click HERE

                          Comment


                          • #28
                            Re: Tweak Fuzz Double-Tweak Mod

                            What ^ he said. The value isn't critical. It's there to prevent oscillation in the 1st stage. I think.

                            Comment


                            • #29
                              Re: Tweak Fuzz Double-Tweak Mod

                              Thank you both. Then I'll do what you say by trying something like 100pF.
                              This project is more complicated than I thought at first, but the chalenge is really interesting. I'm pretty sure I will have new questions in the coming weeks.

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