[Build] Dannysound - Timbre Wavefolder

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[Build] Dannysound - Timbre Wavefolder

Post by Thonk Support » Wed Jul 24, 2019 3:20 am

Image

The Timbre is 6HP Eurorack module based on the wavefolder section of the Buchla 259 oscillator as implemented in the Music Easel.
The wavefolder adds extra harmonics to input signals that have low harmonic content to creating rich and interesting timbres.
Typical input sources to use would be Sine and Triangle waves but you are welcome to try other sources as well!
The Dannysound Timbre adds an extra input to the Buchla design to allow 2 oscillators to drive the wavefolder simultaneously
– this dramatically increases the range of possible tones that can be generated and allows the folder to go wild!

[video][/video]

Read more and buy the kit – Here

Build Document – Here

Schematic – Here

Features
  • Osc1 / Osc2 Mix – Adjusts mix between oscillator 1 and 2 inputs, also acts as an attenuator if only one of the inputs is used.
    Timbre Control – Adjusts the overall wavefold amount.
    Timbre CV – Bipolar (attenuverter) controls the Timbre CV input.
    Symmetry – Adds an offset to the input so the top half of the wave starts folding earlier.
    Blend – Mixes between the clean and effected sound.
Ins / Outs
  • Osc 1 Input
    Osc 2 Input
    Timbre CV Input
    Symmetry CV Input
    Blend CV Input
    Audio Output
Thonk - CLICK HERE - Modular Synth DIY + Eurorack Accessories Store

AS of October 2020 this account which used to go by the name of Monobass is now manned by various staff at Thonk.

intercorni
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Post by intercorni » Fri Sep 06, 2019 7:03 am

Hello,
is it possible to build the wavefolder with +/-15V?

dannysound
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Post by dannysound » Fri Sep 06, 2019 7:29 am

intercorni
Yes it should be ok, you definitely won’t break anything. You might need to play around with a few resistor values but I haven’t tried it so I can’t say for sure.
Give it a go and if you run into any problems let me know.

intercorni
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Post by intercorni » Fri Sep 06, 2019 8:20 am

Many thanks!

jamos
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Post by jamos » Sun Sep 08, 2019 7:18 pm

I built this today, it is a really straightforward and elegant build. The instructions are detailed, almost too detailed when you consider all the pictures of resistor placements. I found that I could place the resistors easily just from the parts list, as everything is beautifully labeled on the boards. This is a 3 board module, with lots of headers between the boards. I did not do either of the mods listed on the last page, but I suspect the two resistor changes to increase the range of modulation and symmetry might be helpful.
Nord Modular G2 & G2X, Emulator X, MPC Live, and a growing Euro system.

Schanke
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PCB + Panel kit also available anywhere?

Post by Schanke » Tue Oct 29, 2019 8:24 am

hi there, anyone knows if its possible to buy a only Pcb panel kit somewhere?

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Re: PCB + Panel kit also available anywhere?

Post by Agawell » Tue Oct 29, 2019 12:12 pm

Schanke wrote:hi there, anyone knows if its possible to buy a only Pcb panel kit somewhere?
thonk, eventually!

based on the other DannySound modules - they were available as kits for a while and then pcb/panels arrived

my guess is sometime next year...
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an oscillator is an oscillator - utilities are possibilities

choose the case to fit the modules - not the modules to fit the case!!!

Schanke
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Post by Schanke » Tue Oct 29, 2019 2:56 pm

thanks @agawell.

thonk only has the kit. i will write them and ask if they will sell me only the pcbs and the panel.

cheers.

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Post by Footkerchief » Tue Dec 17, 2019 2:14 pm

Is the Symmetry knob always an offset, or is it an attenuator for the CV input with a normaled DC offset?

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brandonlogic
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Re: [Build] Dannysound - Timbre Wavefolder

Post by brandonlogic » Tue Apr 14, 2020 1:46 pm

looking to purchase one of these built new or used. please let me know if anyone has any leads

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mrtweed
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Re: [Build] Dannysound - Timbre Wavefolder

Post by mrtweed » Mon Oct 12, 2020 5:55 am

does anyone know if i can use j112s instead of the 2n3819s in the build doc? cheers.

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Re: [Build] Dannysound - Timbre Wavefolder

Post by gebz_15 » Thu Jun 03, 2021 2:16 pm

Hey everyone.

I cannot get hold of 49K9 and 43K2 can I use equivalent resistors or does anyone know where to buy them UK?

Thanks guys

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Re: [Build] Dannysound - Timbre Wavefolder

Post by Thonk Support » Thu Jun 03, 2021 3:35 pm

Thonk - CLICK HERE - Modular Synth DIY + Eurorack Accessories Store

AS of October 2020 this account which used to go by the name of Monobass is now manned by various staff at Thonk.

gebz_15
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Re: [Build] Dannysound - Timbre Wavefolder

Post by gebz_15 » Thu Jun 03, 2021 4:16 pm

Thanks 😊

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Re: [Build] Dannysound - Timbre Wavefolder

Post by Sherpa » Thu Jun 03, 2021 4:59 pm

You might also be able to put two of the appropriate value resistors together in parallel to make those odd resistances. Here's a great site to help you with that: https://www.qsl.net/in3otd/parallr.html

That site gives several options, so depending on what you have on hand you might not need to order these specific values.
For example, you can "make" a 49K9 by using a 75k & 150k in parallel (result: 49K8 which isn't exactly 49K9, but it's within 0.2% which is well within what you'd expect from an official 49K9 1% tolerance component.

gebz_15
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Re: [Build] Dannysound - Timbre Wavefolder

Post by gebz_15 » Fri Jun 04, 2021 1:34 am

Thanks so much Sherpa. Wicked idea and thanks for website info

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