Thursday 18 January 2018

Death by Audio Octave Clang

There was already a layout in the forum section but not on the main page.
This version should easily fit in a 1590B box.
Original FSB thread and schematic available here.


17 comments:

  1. looks very interesting. Had a quick google for transformer. Ebay £20 each , Mouser £2.10 each just incase anybody struggling to find one

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  2. I think the depth pot is wired backwards, but other than that, I'd call this one verified.

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  4. This looks like fun.
    Bitsbox now have the transformer up for £3.78.
    https://www.bitsbox.co.uk/index.php?main_page=product_info&products_id=3414

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  5. Replies
    1. level 3 is on your pot, it has to be the last unconnected leg.

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  6. Hello ! It doesn't work, the LM741 (i used ua741) is not feed by the +9v, because no audio comes out the pin 6. Should the first 47uf capacitor have to be connected between row 1 and 3 instead 1 and 2 ?
    Thanks for your answers !

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  7. Hello again, still not work, ive tried to build it again and my chip gets burned when i pluged it on 9v battery... i have checked few times during this days and i have noticed that the vcc- (pin 4) of the ua741 go throught the offset 2 (pin 5), so i add a cut between them plus a link for vcc- to the ground.
    Now it get sounds out but it's not modulated at all, density pot acts like a low pass filter and a volume.
    Anybody still here for help ?
    Thanks !

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  8. Hi!
    My Octave Clang isn't working. By using an oscilloscope and an audio probe I found out that the 1n capacitor is swallowing all the audio. There is a good signal at the input side but than nothing on the opposite. Changing the part doesn't help.
    Any suggestions?

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  9. Hey Alex, thank you for the layout !
    My build worked fine first try, it is a really cool octave fuzz effect !

    Boxed with an Interstellar OD :
    https://imgur.com/a/gl6YYbf

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    Replies
    1. Oh nice, well done ! Did you change any value or parts in it ?
      looks very nice by the way !!

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    2. Thanks !
      I followed the layout without any modification :)

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  10. Hello,
    This schematic works fine, but I hear a "POP" every time I switch it on. Anyone with the same problem?
    Best regards and thanks for your hard work
    Francesc

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  11. 100nF caacitor should be added between VOLUME 2 and OUTPUT ;)

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    Replies
    1. Do you mean attached to the middle and 3rd legs of the level pot?

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    2. Only reason I ask is because I've built the above schematic a couple times now and am quite satisfied with the sound.

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