I've not had time to get the PCBs made yet, but here's a more clear schematic for the Vixer Volca Mixer. Not confirmed working (the previous hand-drawn schematic certainly does), but I've tripled checked it, so fingers crossed it should do. Will confirm once the PCBs are made up, or let me know if you make it Just right click and save. Enjoy & have happy new year!
This has taken FAR longer than expected to complete, but finally the prototype of the Volca Mixer is ready. I've settled on the following features; 3 Inputs Aux effects send/return, with each channel having an amount pot, plus an overall amount pot Switchable Global Delay Switchable Headphone Amp The mixer has the ability to run without batteries (bypassing Delay and Amp) Here's a quick video of it in action;
Make a small mixer for use with things like the Korg Volcas and other tiny synths. I wanted something I could just grab and use on the sofa with minimal hassle setting up. Ideally it should contain;
Spec
A compact mixer with between 3 to 6 inputs Fits in a 1590BB guitar pedal enclosure Possible Effects section Not be too expensive Keep reading to see the prototypes...
I'm working on a mixer at the moment with built in delay and possibly reverb. The PT2399 datasheet example 'surround / delay' circuit has been changed around to create this plate style reverb. It still needs a bit of work as it's quite noisy, but as a start I guess it's getting there... Hear it for yourself;
Being a massively picky individual I found the colour scheme on the SH01a with the keyboard attachment didn't quite look correct, so decided to build some new wooden side panels for it. Luckily an old box from a Lidl packet of frozen prawns managed to fit perfectly = a Lidl & Roland collaboration perhaps? If you ever read any youtube comments about the Boutiques you might think the whole range was already co-designed by Lidl. I really like them for what it's worth! Watch the video for the full guide;
For a while there the weather in Europe was going mental. Being British, anything above 15 degrees results in me becoming a sweaty mess. The answer was to build a DIY air cooler. It's literally a pc fan sucking air into a lunch box, passing over some ice cubes, and then blowing out of some old camera film canisters. For safety I added a fuse should the ice and psu unexpectedly meet.
