I am thinking the "hold on means" something like "we made it, now be patient until the order happens" :-) I'll remove it as it seems rather confusing. And yes, please add your number to the total.
Well what you *need* depends on what you want. I. e. each DINx4 gives you 32 input pins (32 buttons or 16 encoders or any mixture of that). So first you should figure out what you want to build (how many pots, encoders, buttons, ...) then count the pins and then order the parts ;-) All the info on how many of [input thingie] can be handled by [input thingie module] can be found on ucapps.
5.7V is a bit too much after the regulater, just as 14V is too much before the regulator. Try to put some load on the circuit (and LED + resistor) and see if the voltage on J1 and J2 drops to acceptable values. If not - get a new wallwart.
You can easily leave out the opamp buffer board for testing. Just connect all three outputs via 10k resistors and add a pulldown of 1k-5k from that signal to ground.
Since lemonhorse asked me to take some pics of my AY and I miserably failed to do that so far, here's a little compensation :-) Little mbAY-3-8912 Demo Drums are VSTi, added a some reverb and delay to hide the noise of my soundcard ;-)
Yes, there's good news - the target is reached, the bulk order will happen. At the moment, the prototype boards are being made and will be thouroughly tested. After that, there'll be a "real" sign-up list on the WIKI - stay tuned! ;D
1) dual-gang 500k pots 2) J25 (~9V-11V DC, for connecting to fan). 3) DB25 4) reichelt, conrad. Hey, how cool is that - all of the answers are right here: http://www.midibox.org/dokuwiki/wilba_mb_6582_base_pcb_construction_guide