[gm5x5x5 Bulk order #2 - done]

I removed my name from the list, as I ended up making my own. I hope that's ok

/cry One step back on the way to 100.

We still need 37 more pcb ordered.

[power supply for opl3?]

A PC PSU is unstabilized. What you really want is a stabilized design.

I have build a psu according to the following the following design: http://www.circuitsonline.net/schakelingen/30/voedingen/78xx-voeding.html

The PCB setup: http://www.uploadarchief.net/files/download/co%2078xx%20voeding%202008.pdf

You can use the design for both the +5V and the -12 and +12 Volt. Or you can combine the -12 and +12 in one design like: http://www.reconnsworld.com/power/multipowersupply.gif

[GM5: Least-cost USB-MIDI Interface Chip for 4.50 EUR]

Shipment arrived yesterday. Thank you very much.

[GM5: Least-cost USB-MIDI Interface Chip for 4.50 EUR]

Ok, i have ordered 4 more. There is always an option to sell them afterwards.

[GM5: Least-cost USB-MIDI Interface Chip for 4.50 EUR]

Is there still a slot available for the GM5 with PCB?

You will have to add your name and amount here: http://www.midibox.org/dokuwiki/tk_gm5_bulkorder

But since we are only at 117 pieces atm, i wouldnt hold your breath.

[Put Waveblaster daughter board (Yamaha DB50XG) in a box?]

The storage isn't being used yet. When I wrote the original article, I left hooks in the design so I could add storage and implemented it when I designed the PCB, but there's no code support for it yet.

My plan is to support storing patches in the memory so I can switch between them when not connected to a computer. Depending on how that goes, I might also look at storing a MIDI file in there that can be played back (as a demo, for instance), but that's very speculative at the moment... the patch support is the main new function I want to add.

Before that, however, I'm looking at whether migrating to the latest version of the Microchip USB stack makes sense. The current design uses v1.3 and v2.4 is the latest from Microchip. I'm not sure there are any pressing reasons to migrate, but I may do so just to get familiar with the new stack, which has changed significantly since v1.3.

Cheers, Steve.

Storing patches would be a very nice feature indeed. Looking forward to start building this. But first i have to finish up my MB FM.

[Put Waveblaster daughter board (Yamaha DB50XG) in a box?]

Well it took a little longer than I thought, but the project pages (mistralXG) on my site are now available. There are a couple of bug fixes available, along with the original articles I wrote and the N&V article.

Steve.

Stever,

What is the 128kb Storage used for? I read through the articles a few times, but i couldn't find much info about it.

[Put Waveblaster daughter board (Yamaha DB50XG) in a box?]

Hi Steve,

I am ready to build.

If have bought 5 DB60XG clone from NEC XR385 and 1 DB50XG.  :D

http://cgi.ebay.com.sg/Yamaha-DB50XG-DB60XG-Sound-Daughter-Board-SW1000XG_W0QQitemZ190296107746QQihZ009QQcategoryZ108984QQcmdZViewItem

And I already own a SW60XG as reference.

@stryd_one check your pm.

Best Regards

Jack

The DB60XG also includes an Line IN (Waveblaster connector 12 and 16). You can apply effects to it.

Years ago i build a a little board which was designed by the german electronic maganzine Elektor (http://www.elektor.de/jahrgang/1997/juli/synthesizer-mit-yamaha-db50xg-karte.61631.lynkx). The only problem with that is, that the PSU capacity is on the small side. I used it with a Korg Daughterboard which draws more power then the Yamaha DB50xg. So i had to make some modifications to it.

I recently bought a DB60XG clone from ebay (probably from the same guy  ;)). I want to build a 19 inch version with at least 2 daughterboards, so i can house both cards.

If you go and make something make sure you build a beafy PSU. These cards were allowed to draw a max of 500 mA from the 5V line. I expect the DB60XG to draw more power then the DB50XG since it includes additional IC (AK4510).