Just a small update on my recent DIY activities: the Midibox Sequencer V4 is almost finished. the frontpanel was done by julian, a really talented guy from england (thanks a lot for this great work!), the frontpanle PCB is the Wilba version, that has a real great interaction concept, and all the parts are from smashtv, and the whole Seq V4 concept can be found here: Seq V4, here Wilbas frontpanel and here: www.ucapps.de
It contains 3 Midi out, USB out, 8 CV/Gate out, 2 GB of SD Card memory besides all the great features of the Seq V4! A real fun toy to play with, so I will hopefully finish the desktop case soon so I can use it in my studio. Stay tuned for more detailed pictures!
As an add-on to my MB-808 I have built this small circuit to trigger the internal sequencer of a SH-101 as well as the the arpeggiator of a Juno-60. The original trigger signal of the Roland TR-808/606 and some other Roland instruments has a square waveform with a duration of 1ms, and a minimum of +2,5V, while the trigger signal from the MB-808 circuit is way shorter; With the friendly help of some people at the german synthesizerform I built this small circuit, grabbed the two trigger signals from the shift registers of the Midibox Sequencer, activated these two external triggers in the Midibox firmware and led the two trigger signals to external jacks on the back. Quite easy, and a lot of fun!
Yes, thats right: 10 months after starting to build this baby, she´s finally ready and sounds great! The MB-808 is a clone of the famous Roland TR-808 with a Midibox step sequencer; The bassdrum has this loooong boom, the snare comes snappy and sharp, the toms go pretty deep while the congas almost self oscillate, clap and rims sound just as warm as the original and the hihats groove nice! She has swing, accent, 2 additional trigger for the classic SH-101 & 808 combination or the arpeggiator of some other synth; the digital heart of the MB-808 is the Midibox sequencer, with a rock-solid timing and quite a bunch of useful features; check out the MB-808 project here as well as the Midibox home for more information.
I started this project last winter, when someone on the german synthesizerforum offered me one of the few PCBs of the second batch of the MB-808 project. After sourcing and ordering all the parts I started soldering in january, and soon had a basic running machine at the end of february – but it took me quite a while to source and fix some errors in the analog circuits of the toms and hihats, complete the case (I tried out several options, the final case has been laser-cut and powder-coated by one of my relatives in his factory), order the knobs, draw the artwork for the case and get it silkscreened at a printer here around…