WE ARE EXTREMELY EXCITED TO ANNOUNCE THE 'NEW FOR 2025' COLLABORATION WITH MADBEAN PEDALS! Fantastic DIY pedal projects, now available as full or partial Small Bear kits!
Our Partial Kits include the PCB/PCB Set and all parts needed for the project, except you supply your own enclosure and knobs.
Our Full Kit includes the PCB/PCB Set, all the parts, a drilled enclosure and knobs.
You can always check out the MadBean Forum for more info-- a great resource! MadBean Pedals Forum
Overview
The 2024 version of the Collosalus has no circuit changes and minor layout adjustments. A new bypass board is included with purchase. The Collosalus first arrived in 2014. It was based on the work done on DIYSB to convert the vintage SAD1024 MXR 117 to the MN3007 BBD. The project had a great run, was popular and then was discontinued around 2018 for some reason I cannot remember (I think because I had planned on doing a bunch of new flangers at the time). Coming back to it in 2022, I decided to do a total redesign of the project and schematic redraw to make it more legible and to make a better, cleaner build. The 2022 version does not have a charge pump from the previous version and operates on a standard 18v 100mA power supply instead. This was to address issues with noise when using a charge pump powered by 9v supply. Some builders had no problems with 9v, while others had better results using 12v with the on-board charge pump. Making the default power 18v seems the best way to eliminate any potential noise issues. I did test the 2022 version with a 9v powered charge pump and it seemed to work okay. So, that option is there if 9v is a must for you. The PCB has also been converted to a 4-layer layout. This helps reduce noise and greatly improves the signal routing between audio, power, clock and LFO.
