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Thread: Vox Defiant pre amp schematic

  1. #1
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    Vox Defiant pre amp schematic

    Hi

    I have JMI /VOX defiant in, faults all over the place. Sorted the power amp but i have a pre amp fault
    I have the map for the power amp but no pre amp. Checked online can't find it anywhere. Went though Vox links i can see nothing there., Nothing at the vox site either
    There is a guy on the net selling manuals, in the USA but its snail mail.
    So before i buy i want to see if you have one

    I Have the power amp its the pre amp I'm looking for

    BBB

  2. #2
    Senior Member vintagekiki's Avatar
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    Vox Defiant pre amp schematic

    This Vox Solid State Amplifiers are built between 1967 and 1972 year in four models Vox Supreme (100W), Defiant (50W), Conqueror (30W) and Virtuoso (20W) and two versions Vox Sound Limited (VSL) without standby switch and Vox Sound Equipment (VSE) with standby switch

    All four models have identical preamp with minor differences in tone control schematics depend from versions VSL or VSE


    http://media.wix.com/ugd/ad89e3_0bc1f618132142f2b244304e3d3b5037.pdf
    Vox VSL preamp

    http://media.wix.com/ugd/ad89e3_923332635f5749e99dc8f0865fe021b0.pdf
    Vox VSE preamp

    Complete rebuilt Vox sixties solid state amps with a lot of pictures and tips is described on
    http://web.archive.org/web/20160528120442im_/http://www.backfromthesixties.co.uk/SiteAssets/vox_supreme/Supreme-chassis-Jul-09-003.jpg
    (Click on Vox Conqueror or Vox Supreme)

    Useful links


    http://www.korguk.com/voxcircuits/

    http://www.voxshowroom.com/equipment/index.html#uk ss

    http://www.voxsupreme.org.uk/

    http://www.voxsupreme.org.uk/defiant.html

    http://www.voxsupreme.org.uk/schematics.html
    Last edited by vintagekiki; 03-23-2017 at 01:18 AM.
    g1 and DrGonz78 like this.

  3. #3
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    Many thanks Vintage. I looked all over the place for the schematic. couldnt find anymore than the power amp
    thanks again
    BBB

  4. #4
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    Hi

    Drawings moved from backfromthesixties to here https://jensdad.wixsite.com/the-vox-supreme for the time being.
    vintagekiki likes this.

  5. #5
    Senior Member vintagekiki's Avatar
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    Quote Originally Posted by Chris D View Post
    ... https://jensdad.wixsite.com/the-vox-supreme ....
    Unfortunately, the link is no longer active (Error 404)

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