This is a library of perfboard and single-sided PCB effect layouts for guitar and bass. I'm not an electrical engineer by any stretch of the imagination, just a DIY'er who likes drawing layouts. It is meant for the hobbyist (so commercial use of any of these layout is not allowed without permission) and as a way to give back to the online DIY community.

Tuesday, June 4, 2019

Buffalo Fx TD-X

This one's inspired by the BK Butler Tube Driver made famous by David Gilmour (and a few others). It does away with the tube and replaces it with solid state circuitry. It's essentially a RAT with soft clipping and a 2-band EQ stuck between a buffer and an extra gain stage. Should fit nicely in a 1590B.


19 comments:

  1. Now this is a very nice sounding OD, lots of sustain!

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  2. hello guys would it be possible to find the scheme for this pedal? I'd like to try to understand more about it and see if you can change something and then share it with you.

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  3. I miss to have the Schematics of the Circuits, but, anyway, thanx for sharing.

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  4. boa tarde!
    qual o caminho pra encontrar o arquivo pra impressão?? pois não encontrei na aba de transferências!

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    1. Procure na pasta Misc, projetos assim geralmente são postos lá..

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  5. This comment has been removed by the author.

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  6. Verified too. Just another fine soft overdrive. It will sounding like Gilmour only with his strat! =). Thank you, David!

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  7. Any good replacement for lm301?

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  8. Hello to all. I Assembled this pedal on a breadboard. Instead of lm301, I tried tl071 and lm741. The sound is a little different, but cool in both cases. But I noticed one problem. At maximum gain after the decay of the note, an unpleasant overtone appears. Maybe someone had the same problem and how they decided? I will be grateful for the help how to get rid of this.

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  9. Hey, first, thank you for the amazing blog and all the layouts!

    I too built the TD-X. At first, I believed I had done something wrong as I was getting this fuzzy overtone no matter what settings were in the pedal. Then I tried some other IC's and it sounded just fine.
    You can hear some of my tests with the different ICs following this link:
    https://soundcloud.com/leonardolopezchavira/sets/buffalo-fx-td-x-clone-ic-testcomparison

    Settings on the pedal on all tests were all knobs at noon. I believe that I have faulty LM301s. Later, I will order some other ones to make a conclusion. I could hear no discernable difference between the LM308, ua741 nor the NE5534. So, if you don´t have a LM301 there are some other IC's you can use. Currently I am using a NE5534 which I think was a tiny little hair brighter.

    Regards!

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  11. Yes, of course, many thanks to the author of the blog and all the participants for your great work.
    And special thanks to ainokami for the tip and for wanting to help. But my problemma is not solved, I hope so far. The fact is that an unpleasant overtone appears precisely when the sound of the note attenuates and in pauses when the gain potentiometer is at maximum. If gain is not twisted to maximum, there is no overtone. Tested with different chips. Powered by 9v battery. Thanks again for the comments, and maybe there are any other ideas? Sorry for my bad english.

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  12. Well done for tracing it, I'm honored:)

    Steve Painter - Buffalo FX

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  13. Has anyone had a problem with the pedal getting too noisy or hissy with the GAIN in hi settings?

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  14. Can you share the schematic diagram? Thanks!

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  15. Hello friend, thanks for your job. I have One question for you: in the original TD-X there is one 2N7000 MOSFET... why don’t i see it on your layout? Thanks

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    1. The gut shots I've seen of the TD-X don't have a MOSFET... Perhaps it's an earlier version and they used Millennium bypass?

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