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Orange Micro Terror (20W hybrid- Tube Pre/SS Power)

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  • Orange Micro Terror (20W hybrid- Tube Pre/SS Power)

    I am mainly wondering about the single knob tone control used in this amp if anyone knows about it. A full schematic or one of the tube pre-amp section would be cool, too.

    Steve Ahola
    The Blue Guitar
    www.blueguitar.org
    Some recordings:
    https://soundcloud.com/sssteeve/sets...e-blue-guitar/
    .

  • #2
    It's probably just a simple treble cut: rheostat in series with a capacitor. If it was "PI crossline" in Tiny Terror then in an amp without tube power section the same circuit probably just shunts from signal path to ground.

    Open it up and spend a few minutes inside and you probably have it sketched out in no time. The insides are not gooped or anything that would prevent "reverse-engineering".

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    • #3
      Hi Steve firstly I hope the chemo and radiation therapy is/was going according to plan. I guess some of your recent posts may have
      been made while you are in the thick of it.
      Teemuk is spot on it's a simple treble cut like in Vox ac10s etc .
      There's a schematic at ElektroTanya although I doubt it's factory issue.
      I'll attach it here.

      Edit: Just realised it's a Micro not a Tiny ... some internal photos here at Squire-Talk by MTK 3000
      Code:
      http://www.squier-talk.com/forum/amp-ridifiers/15182-nad-orange-micro-terror.html
      Click image for larger version

Name:	Tiny 1.jpg
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      and thanks for reposting the schematic Dr although it's the wrong one.
      Last edited by oc disorder; 10-13-2013, 06:51 PM. Reason: misread topic

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      • #4
        The link did not work on that last post...
        Attached Files
        When the going gets weird... The weird turn pro!

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        • #5
          Originally posted by DrGonz78 View Post
          The link did not work on that last post...
          Thanks! I suspect that the tube preamp section of the Micro Terror is similar to that in the Tiny Terror which I see uses an AC-30 style "Cut" circuit as the tone control.

          I was checking out the pix at Squier Talk- the PCB is a real work of art!

          NAD - Orange Micro Terror - Fender® Squier® Guitar and Bass Forum

          Steve Ahola

          Steve
          The Blue Guitar
          www.blueguitar.org
          Some recordings:
          https://soundcloud.com/sssteeve/sets...e-blue-guitar/
          .

          Comment


          • #6
            https://gitlab.com/jofirel/uterror-a...amp-master.zip
            Originally posted by Enzo
            I have a sign in my shop that says, "Never think up reasons not to check something."


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