Klon Centaur buffer boards

Monday, May 18, 2015

Klon Centaur buffer boards

Today I just received my first PCB conceived by me! A really simple Klon Centaur buffer.
DIY Klon centaur buffer PCB
I never really used a buffered pedal before having some boss pedals or my EHX soul food. I want to try whether it really changes something when placed at the beginning of the chain. But the main reason why I choosed this circuit is because it is a really simple one.
I am really satisfied with my layout, a lot of geometry going on here, every component just fits! It is really a small PCB, I wonder whether it can fit in a 1590LB enclosure... Seems possible! 
For now I am planning to use it in a patch box for my pedalboard, to use it as an optional buffer at the begining of the chain.
I did all the work on eagle, so maybe I will write down a short tutorial soon.

11 comments

  1. UnknownOctober 23, 2015 at 2:29 AM

    Hello, I really like the look of your boards. As a fellow European, where did you get your PCB manufactured?

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    1. Coda EffectsOctober 23, 2015 at 2:54 AM

      Even if it may seem strange, it was cheaper to use OshPark based in the US than any european company. Especially with the free shipping costs... It is ideal for low series of PCB. If you want to make more, I think that there are cheaper alternative in China. I am currently making a batch of prototypes with PCBway.

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    2. UnknownOctober 23, 2015 at 4:21 AM

      Thanks... I'm thinking of getting some fabricated. I love that they are purple

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    3. Coda EffectsOctober 23, 2015 at 4:23 AM

      Purple color is a OshPark symbol! I never found any purple mask elsewhere

      Delete
  2. UnknownOctober 23, 2015 at 2:36 AM

    This comment has been removed by the author.

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  3. AnonymousJanuary 19, 2016 at 8:58 AM

    Great site...I just ordered an Aion Klon board based on your write-up. The values in this buffer board seem to be a bit different than the schematic that you analyzed in your Klon article ( http://4.bp.blogspot.com/-LSz7YIxjc3s/VeKoi4OtTkI/AAAAAAAABkY/g7WzbgIyjo8/s640/buffer.png ). May I ask what these differences represent?

    Thanks for the great content!

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    1. Coda EffectsJanuary 19, 2016 at 9:21 AM

      Hello,

      I realized recently that the schematic I used for the Klon buffer is wrong. Actually, most of the schematic of the buffer you can find online are wrong if you compare them to the original schematic drown in 2009.
      Manticore FX wrote an article about it:
      https://manticorefx.wordpress.com/2015/10/29/klon-buffers-theyre-all-wrong/

      I redesigned recently a buffer board with the correct values and power supply adjustements that is 100% correct towards the original schematic.

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  4. AnonymousJanuary 19, 2016 at 11:17 AM

    I read the same article recently while I was on the hunt for an accurate schematic. If you ever decide to sell your new buffer boards, I'll be sure to pick one up. Thanks for the reply.

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  5. UnknownMarch 1, 2016 at 7:57 PM

    hey! greetings from Venezuela! amazing clones pedal dude! hey where can i find a good schematic for this buffer???? I wish to make one

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  6. UnknownOctober 29, 2017 at 4:34 AM

    This comment has been removed by the author.

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  7. UnknownOctober 29, 2017 at 4:38 AM

    Hi and thanks for all this work. Ive just built an eBay kit and the input buffer has an issue with DC on the output. The unit is not mounted in its box yet and when I add a battery or psu it starts up fine but after 5 secs gradually fizzles out in 3 secs and the output raises to 9 if i put a Tektronix probe onto pin 3 input it creates stability and the DC drops back down immediately...and comes back when I release. This happens in both clean and bypass. Feeding from a Ditto looper.

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