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[AVAILABLE] clee Bits for Euro (bit crusher)
MUFF WIGGLER Forum Index -> Music Tech DIY  
Author [AVAILABLE] clee Bits for Euro (bit crusher)
CLee
You Euro DIYers may not be all that familiar with my stuff, I build 4U Serge format modules. One of my modules, a bit crusher, I'm releasing in the Euro format. Thanks to Frogleg Synthesis for the PCB and Panel layout.

PCBs/PCB panels are $36 and available at the usual places. SynthCube has them in stock, Modular Addict and Thonk to follow soon (on their way)

Here's the 4U thread, https://www.muffwiggler.com/forum/viewtopic.php?t=208069&highlight=

Bits is a 12bit bit crusher module with waveshaping. The module uses a Teensy 3.2 Info on my web site: Euro Bits, including BOMs and schematics.






daynehacks
This looks very excellent. I've always wanted to build a guitar pedal with the teensy that did this. I will definitely have to pick one up for my eurorack!
pppier
great module (and I look forward to have other clee modules in eurorack)

so you told me to set 48Mhz as CPU SPEED in Arduino Environment (I love teensy, easy to flash)

what about the 2 trimmers? looking at schematics I guess TR2 is to reach 0V at output, or...?
and what i have to look for while trimming TR1 (RAW DAC / LPF) ?
CLee
EDIT: THIS WAS INCORRECT ORIGINALLY!

Trim TR1 for unity gain through the module with no modulation (fastest sample rate, maximum bits, and no wave shaping and ADC/LPF set to ADC).

Then with no input adjust TR2 for no change at the output when switching the OFFSET switch on and off.
pppier
thumbs up
edit
thumbs up
symplx
I have a question about RV5 the prefilter dual Potentiometer, Alps RK09L. According to the image of the PCB it's 100k. Alps does not make a dual 100k vertical pot. Would a 10k work? Is it audio taper? What's available: https://www.alps.com/prod/info/E/HTML/Potentiometer/RotaryPotentiomete rs/RK09L/RK09L_list.html

Thankx
CLee
symplx wrote:
I have a question about RV5 the prefilter dual Potentiometer, Alps RK09L. According to the image of the PCB it's 100k. Alps does not make a dual 100k vertical pot. Would a 10k work? Is it audio taper? What's available: https://www.alps.com/prod/info/E/HTML/Potentiometer/RotaryPotentiomete rs/RK09L/RK09L_list.html

Thankx


It should be 100K because the value sets the range of the filter.

Thonk carries the pot here,

https://www.thonk.co.uk/shop/alpha-9mm-pots/

When I was having the PCBs made for the Euro version I was told by synthCube and Modular Addict that they had the pot available, but I don't see it on their web site.
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