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Fæpbœx III: 3-Band Preamp

Discussion in 'Effects [BG]' started by EricssonB, Jul 21, 2012.

  1. EricssonB

    EricssonB

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    Made a rip-off of somebody else's ripoff of a Stingray 3-band preamp. Didn't like the guy's layout, so I made mine with a clockwise rotation on the signal flow. Yes, you may notice that the digital layout is slightly smaller than the one in the picture -- I didn't realise how large those components were in real life. Just started from the input and stretched it out just a smidge.

    Works great, thanks to some help. I had added a fourth capacitor instead of a straight shot between -V and ground. Don't do that. Fixed on schematic.

    Next build of it will be on a smaller board and be placed inside of a 1590 enclosure.

    [​IMG]
    [​IMG]
    [​IMG]
    (Heh, picture from before I scrapped that fourth capacitor. Bias power is yellow wire, ground is white; +/-V is wired from one side to the other on the underside.)
    [​IMG]
    Built two on the same board, to be split and put into the final Bœxes, one sent to a friend. How romantic.
  2. ryansalmond

    ryansalmond Supporting Member

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  3. EricssonB

    EricssonB

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    Suggestions on layout? Feel free. Not asking for a lot beyond an eye to notice something that I didn't.

    About ready to build these things, finally. Figured I'd be a perfectionist and draft up some lines for when I take it to the drill press. To be printed and used for drill press guides on a 1590 enclosure. Most of the lines are merely for reference.

    God forbid somebody accuse me of not putting in enough LEDs.

    Why yes, I am drafting this up using Adobe Illustrator, everything being done according to a grid and using centimeters for precision. Measured up all the components by hand, beforehand.

    [​IMG]
    [​IMG]
    Worked just fine for my guitar that I built a few years back.
    [​IMG]
  4. father of fires

    father of fires Supporting Member

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    Looks fun. Your input stage is quite confusing???!!!

    Where do you come up with the design? It looks like a lot of components for a basic buffer? Is this going to be used with an active or passive bass?

    OH I see! Its the Sting Ray schematic. Sorry. I wasn't paying attention.

    As it stands, it looks like it would sound the best with a passive instrument without any buffers (tamer highs). I'd love to hear sound samples.
  5. EricssonB

    EricssonB

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    You can find sound samples under the "somebody else's ripoff" link on the original post.

    I'm building it in an enclosure because I have four instruments and they're all passive. :)
  6. EricssonB

    EricssonB

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    Guess it could use an update and closeout. Finish up the original Fæpbœx series. Made a "I" last week because I had some parts laying around; LPB-1. Why not.

    [​IMG]
    [​IMG]
  7. Roscoe East

    Roscoe East

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    Is that pronounced "fap-box"?
  8. EricssonB

    EricssonB

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    I think so. :ninja:

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