hey all, I have installed a new forum on my website for the 9090. If you have questions about sourcing components, if you don't know why you only hear a click when triggering x instrument,.... but also when you want to post your solution to a problem or post your picutures of your finished 9090....you can now go to:http://www.synthage.com/Betaforum/PhPforum/index.php
the TR 909 sequencer clone, the MB909 is working!!!!
I have made a little video of the MB909 sequencer hooked up with the 9090 boards. combined you have the greatest TR-909 clone (that's just my opinion because I put a lot of time in it ).
I am using the NXP LPC1769 based MBHP_CORE_LPC17 module from MidiBox. Thorsten has done a great job with the MidiBox Sequencer V4 (SD card, USB, OSC....).? The PCB, that you see in this video, is my TR909-looking user interface design.
the quality is bad, but you'll have at least a feeling of how my sequencer will be.
Studying for the last two weeks for an exam yesterday, I didn't have a lot of time to put in the project.
But I now have almost all the parts for the 9090. I used the subatomicglue excel file and got most parts at Mouser.
The 2sd1469R I had to order from Nikko electronics (wwww.dalbani.co.uk), the rest I ordered from Reichelt.de.
If you would ever consider ordering parts in Europe: reichelt is a lot
cheaper the Mouser, damn I which I first looked at Reichelt
I waited for the PCB's to come in from Trevor, so I could be sure of the
correct size of the capacitors. I have now placed the order at
I have sorted out all the parts that I received from Mouser and Nikko by
their values, in such a manner that I can work organized.
Yesterday I already started soldering (I know I should wait until I have all the parts, but I couldn't wait).
I soldered in all the parts I have for the power and for the bass drum.
today I will start with the second board with the cymbal, Hi-hat, MIDI
etc parts, because I have not yet tested the power and don't want to
waist a complete PCB. fingers crossed that all is ok and I don't burn
components of the bass drum section.
you can also see on the picture that I haven't soldered the transistors
yet, I will not use the BC559 and BC549 from Mouser but the transistors I
ordered from Reichelt. I also need another capacitor for C8, because
the one I have is to wide to fit in between the resistors left and right
of that position. When I get that one from the local shop here, I will
also need to buy a male and female connector for the power (J8, J11, J23
and J25) because the males I ordered don't fit the females....