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I have decided to rebuild the preamp on my Mortar - to a Mark.

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  • I have decided to rebuild the preamp on my Mortar - to a Mark.

    Yes, I change my mind like I change underwear. But everything's there for me to reproduce a MkIIC+ type circuit, switchable to the MkIII purple stripe spec. Of course, it won't be identical, as my layout will be different and also I use different parts / transformers etc..



    Anyways, my original Mortar build was great, but still not quite what I wanted. So now Its on to the mark. I will use my old Tomahawk as a clean amp instead, make that one into a AC30-type. I'll have a two amp setup, one for gain and one for cleans. Sounds great to me.
    <div class="signaturecontainer">Everyone's Here -&gt; GUITARAMPBOARD.COM<br>GUITARAMPBOARD.COM<br>GUITAR AMPBOARD.COM<br>GUITARAMPBOARD.COM<br>GUITARAMPBOA RD.COM<br>GUITARAMPBOARD.COM</div>

  • #2
    Ideas I am shooting around:



    Will probably end up with the preamp tonestack like the actual mark, then the mesa EQ would also be implemented. I think I want to insert it in the loop instead of post-loop for more headroom. People over at SLO clone say that the EQ seems to hit clipping post-loop.
    <div class="signaturecontainer">Everyone's Here -&gt; GUITARAMPBOARD.COM<br>GUITARAMPBOARD.COM<br>GUITAR AMPBOARD.COM<br>GUITARAMPBOARD.COM<br>GUITARAMPBOA RD.COM<br>GUITARAMPBOARD.COM</div>

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    • #3
      Ideas I am shooting around:



      Will probably end up with the preamp tonestack like the actual mark, then the mesa EQ would also be implemented. I think I want to insert it in the loop instead of post-loop for more headroom. People over at SLO clone say that the EQ seems to hit clipping post-loop.
      <div class="signaturecontainer">Everyone's Here -&gt; GUITARAMPBOARD.COM<br>GUITARAMPBOARD.COM<br>GUITAR AMPBOARD.COM<br>GUITARAMPBOARD.COM<br>GUITARAMPBOA RD.COM<br>GUITARAMPBOARD.COM</div>

      Comment


      • #4
        if I was going to build a preamp - I don't think it would be a mark.

        But then again - I have never had one, so what do I know?
        Sig: don't care enough to have one<br><br><br>WAIT!!! - www.guitarampboard.com

        Comment


        • #5
          if I was going to build a preamp - I don't think it would be a mark.

          But then again - I have never had one, so what do I know?
          Sig: don't care enough to have one<br><br><br>WAIT!!! - www.guitarampboard.com

          Comment


          • #6
            So I'm looking into a gyrator EQ vs the standard EQ with inductors, its essentially the same other than the transistors vs inductors..
            <div class="signaturecontainer">Everyone's Here -&gt; GUITARAMPBOARD.COM<br>GUITARAMPBOARD.COM<br>GUITAR AMPBOARD.COM<br>GUITARAMPBOARD.COM<br>GUITARAMPBOA RD.COM<br>GUITARAMPBOARD.COM</div>

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            • #7
              So I'm looking into a gyrator EQ vs the standard EQ with inductors, its essentially the same other than the transistors vs inductors..
              <div class="signaturecontainer">Everyone's Here -&gt; GUITARAMPBOARD.COM<br>GUITARAMPBOARD.COM<br>GUITAR AMPBOARD.COM<br>GUITARAMPBOARD.COM<br>GUITARAMPBOA RD.COM<br>GUITARAMPBOARD.COM</div>

              Comment


              • #8
                Veeeeeery iiiiiinteresting.



                I'm definitely going to be following this one.
                <div class="signaturecontainer"><font size="4"><div align="center"><font face="Garamond"><b><a href="http://acapella.harmony-central.com/showpost.php?p=37810128&amp;postcount=149" target="_blank">Good Transactions</a> - <a href="http://acapella.harmony-central.com/forums/showthread.php?t=2282795" target="_blank">Peavey VTM Mods Lounge</a></b></font></div></font><div align="center"><font face="Garamond"><br />
                <a href="http://www.myspace.com/legacyofmusic" target="_blank">The Legacy Of...</a></font><br />
                </div></div>

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                • #9
                  Veeeeeery iiiiiinteresting.



                  I'm definitely going to be following this one.
                  <div class="signaturecontainer"><font size="4"><div align="center"><font face="Garamond"><b><a href="http://acapella.harmony-central.com/showpost.php?p=37810128&amp;postcount=149" target="_blank">Good Transactions</a> - <a href="http://acapella.harmony-central.com/forums/showthread.php?t=2282795" target="_blank">Peavey VTM Mods Lounge</a></b></font></div></font><div align="center"><font face="Garamond"><br />
                  <a href="http://www.myspace.com/legacyofmusic" target="_blank">The Legacy Of...</a></font><br />
                  </div></div>

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                  • #10
                    Me too. It is interesting the fact alone that you can almost everywhere find clones of most known amps besides marks. Like there is a "no touch it" rule or something.



                    There are certain people who can and have build them if you go around sloclone or ampgarage etc though I think I remember a lot of troubleshooting with them. And there is this guys pedrone leMarc video on youtube who seems to have gotten there.



                    But you know, soldano clones, marshall clones, fender clones vox clones,...5150-rectifier variants from every company, where are the marks?



                    And I mean marks-marks with input volume, push pull everything (!) and pre distortion tonestack with the original spec graphic eq!!!
                    <div class="signaturecontainer">&quot;is this tone obtainable using the HD500 or Axe Fx? Overall, for convenience and volume control, should I buy the Axe Fx over actual tube amps? I don't plan on playing loud; just playing at home and recording on my Mac. Thanks man, you are awesome!<br />
                    <br />
                    <br />
                    short answer: no...<br />
                    <br />
                    long answer: no way...&quot;</div>

                    Comment


                    • #11
                      Me too. It is interesting the fact alone that you can almost everywhere find clones of most known amps besides marks. Like there is a "no touch it" rule or something.



                      There are certain people who can and have build them if you go around sloclone or ampgarage etc though I think I remember a lot of troubleshooting with them. And there is this guys pedrone leMarc video on youtube who seems to have gotten there.



                      But you know, soldano clones, marshall clones, fender clones vox clones,...5150-rectifier variants from every company, where are the marks?



                      And I mean marks-marks with input volume, push pull everything (!) and pre distortion tonestack with the original spec graphic eq!!!
                      <div class="signaturecontainer">&quot;is this tone obtainable using the HD500 or Axe Fx? Overall, for convenience and volume control, should I buy the Axe Fx over actual tube amps? I don't plan on playing loud; just playing at home and recording on my Mac. Thanks man, you are awesome!<br />
                      <br />
                      <br />
                      short answer: no...<br />
                      <br />
                      long answer: no way...&quot;</div>

                      Comment


                      • #12
                        Me too. It is interesting the fact alone that you can almost everywhere find clones of most known amps besides marks. Like there is a "no touch it" rule or something.



                        There are certain people who can and have build them if you go around sloclone or ampgarage etc though I think I remember a lot of troubleshooting with them. And there is this guys pedrone leMarc video on youtube who seems to have gotten there.



                        But you know, soldano clones, marshall clones, fender clones vox clones,...5150-rectifier variants from every company, where are the marks?



                        And I mean marks-marks with input volume, push pull everything (!) and pre distortion tonestack with the original spec graphic eq!!!
                        <div class="signaturecontainer">&quot;is this tone obtainable using the HD500 or Axe Fx? Overall, for convenience and volume control, should I buy the Axe Fx over actual tube amps? I don't plan on playing loud; just playing at home and recording on my Mac. Thanks man, you are awesome!<br />
                        <br />
                        <br />
                        short answer: no...<br />
                        <br />
                        long answer: no way...&quot;</div>

                        Comment


                        • #13
                          Me too. It is interesting the fact alone that you can almost everywhere find clones of most known amps besides marks. Like there is a "no touch it" rule or something.



                          There are certain people who can and have build them if you go around sloclone or ampgarage etc though I think I remember a lot of troubleshooting with them. And there is this guys pedrone leMarc video on youtube who seems to have gotten there.



                          But you know, soldano clones, marshall clones, fender clones vox clones,...5150-rectifier variants from every company, where are the marks?



                          And I mean marks-marks with input volume, push pull everything (!) and pre distortion tonestack with the original spec graphic eq!!!
                          <div class="signaturecontainer">&quot;is this tone obtainable using the HD500 or Axe Fx? Overall, for convenience and volume control, should I buy the Axe Fx over actual tube amps? I don't plan on playing loud; just playing at home and recording on my Mac. Thanks man, you are awesome!<br />
                          <br />
                          <br />
                          short answer: no...<br />
                          <br />
                          long answer: no way...&quot;</div>

                          Comment


                          • #14
                            Preliminary schematic so far, will add the gyrator circuit once I have permission from its creator. I won't go too in depth with the mark, as it will be used solely for its lead channel. I keep updating the schem as I have time, so I'll post an updated one once I get the nod for the gyrator.



                            <div class="signaturecontainer">Everyone's Here -&gt; GUITARAMPBOARD.COM<br>GUITARAMPBOARD.COM<br>GUITAR AMPBOARD.COM<br>GUITARAMPBOARD.COM<br>GUITARAMPBOA RD.COM<br>GUITARAMPBOARD.COM</div>

                            Comment


                            • #15
                              Preliminary schematic so far, will add the gyrator circuit once I have permission from its creator. I won't go too in depth with the mark, as it will be used solely for its lead channel. I keep updating the schem as I have time, so I'll post an updated one once I get the nod for the gyrator.



                              <div class="signaturecontainer">Everyone's Here -&gt; GUITARAMPBOARD.COM<br>GUITARAMPBOARD.COM<br>GUITAR AMPBOARD.COM<br>GUITARAMPBOARD.COM<br>GUITARAMPBOA RD.COM<br>GUITARAMPBOARD.COM</div>

                              Comment

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