seppoman

Hi Nebula, could you give a rough estimation on shipping costs to Europe, e.g. for 2, 5 and 10 displays? I´d still be interested in participating, but if the shipping like doubles the price it wouldn´t really be cheapter than ordering a few from a domestic ebayer anymore. Thanks, Seppoman

you´ve asked that and been answered with an educated guess just two days ago. Why don´t you just try it out? You can´t damage anything. S

you just click on the headline [[seq]] and the wiki tells you where it is linked from. In this case, from nowhere :) http://www.midibox.org/dokuwiki/seq?do=backlink btw, this seq page looks like mostly non seq specific crap. Except for the LCD section, I don´t see any information worth to be preserved ("With a special circuit, it should be able to use the 9V PSU from FLOPPY 1541-II" - so what? Anything Midibox that only needs 5 V could be powered from this PSU, this has no point on a specialized project page. And what special cirquit? 9V is 9V, just connect it to the core...) Thanks for cleaning up anyway :) Seppoman

Hi, just a short note for people making the same mistake like me: Always look at the first post in this thread to find the newest MIOS Studio version - 7_4 is not the newest anymore :) Seppoman

Hi, that doesn´t sound very good. First of all, do you use the AOUT_LC or AOUT, the gate outputs from the AOUT or from the core? From what PSU did you power the ULN? I hope it was a regulated DC one? As you can see e.g. on the DOUT page of SmashTV (http://www.avishowtech.com/mbhp/mbhp_doutR3.html), the ULN can be used without any additional cirquitry - just +VCC on pin 10 and GND on pin 9. Then just take two inputs and you get the higher voltage on the corresponding outputs (e.g. pin 1 and 2 control pin 18 and 17). BTW: I suppose it´s neccessary that both the ULN and the rest of the cirquit do use the same ground level also to prevent any uncontrolled currents flowing over the logic connection. If you´re using some integrated +´5V, +-12V PSU, there´s no problem. But if you used a separate PSU for the ULN, you need to solder a wire between the ULN (new PSU) ground and the regular midibox ground. First and most important you need to get things working again without ULN. If it´s an AOUT, I hope you didn´t somehow fry the DAC ICs. Do they still output CV voltages? Seppoman

Hi, the gate voltage can´t be increased directly on the AOUT. But you can use an ULN2803. This is a driver IC which takes up to 8 logic inputs and drives corresponding outputs from a separate supply voltage (e.g. 9 or 12 Volts). This is a quite simple cirquit that can be built easily on vectorboard. Seppoman

Here are two images from http://cbmmuseum.kuto.de/ (German website): As you can see, the C128 is larger and already more similar to the Amiga 500 case. Seppoman

Maybe a quote from the Midibox FAQ (http://www.midibox.org/dokuwiki/questions_and_answers) is in place here: ;) Anyway, this is a whole ISA soundcard on one chip. TK mentioned the 100 pins package. Even if it would be possible to access the OPL part seperately, do you think all the effort of making a custom PCB etc. is worth the 2 Euros another soundcard would cost on the fleamarket? Accessing the other (mixer) functions is also not very interesting because the audio specs of a 10 year old 16 bit sound card are probably worse than anything that is sold today. Seppoman

I´m not very familiar with configuring mb64, but from the MB64 page: So yes, you have to upload the application. mk_syx is only for configuring it (when it´s already running). How did you get your box running in the first place if you don´t know these things? ;) Seppoman

being impatient? It´s sunday, never much traffic here. Anyway: Piezos are not what you need. They only pick up very fast changes (like e.g. hitting a drum pad) but won´t sense anything without change. For aftertouch you need a sensor that continually gives the actual pressure. Look for "FSR" (Force sensing resistor). These are flat pads that change resistance the more you press them. they´re not really cheap, but probably cheaper than the piezos from your link. Seppoman

Yes :) after uploading a new MIOS, you always need to re-upload the application. Seppoman

right, fixed :) Sure? Your R3 parts list has no R12, and in the changelog it´s first mentioned for R4d. Anyway, no big deal to add it to a R3 PCB :) Seppoman

Hi again, at least for the Core and Sid you can download PDFs of the older single sided revisions from SmashTVs site: http://www.avishowtech.com/mbhp/mbhp_SIDR2.html http://www.avishowtech.com/mbhp/mbhp_coreR3.html PDFs are near the bottom of the pages. Note the comment about R12 on this page though: http://www.ucapps.de/mbhp_core_old.html For the AOUT_LC, I have no idea if some printable pdf exists . Seppoman

Hi, ever had a look at http://www.ucapps.de? ;D or do you search for something special? Seppoman

as some people on the chat also asked about it: I´m in the process of final minor layouting/testing, then I´ll send Smash the files, then it depends on how long his manufacturer takes etc. So don´t expect anything happening until let´s say at least mid October. Seppoman

you´re right, the frets would need to be segmented, too :( I missed the part that even while you can wire it up as one (after the diodes), you still need a diode at every single contact point. So this would be a lot of mechanical work. But with separated frets and bridges, it would at least work. When playing barré stuff with the resistive approach, you need to put into the consideration that the Rs of the different "strings" will also influence each other. I´d say the easiest solution would be to buy a commercial guitar-to-midi interface. everything else will have some drawbacks compared to it, and having to make swiss cheese out of the neck will cost a lot of time, work, and eventually also money. If you still want to diy, the diode matrix/env follower approach still looks to me as the best solution. Seppoman

the (diode) matrix approach would work polyphonically. the frets can be in one piece, just you´d need to find a way to have the strings insulated from each other. Seppoman

For 2.69, I´ll take 10 - so we already have half a carton :) S

...or it may not. TK repeatedly stated that he won´t do any changes to the front panels of his boxes, so at least for the existing apps these two lines are and will probably stay useless. In my view, having useless display lines is like having a group of large unconnected rocker switches on a front panel. I´d find this aesthetically disturbing - but this is a matter of taste of course. At least, future uses of these lines IMHO can´t be counted into the decision for a LCD. S

so the 2x20s have already disappeared from the page. i.e. any bulk order needs to be organized really SOON :o S

For 2.69$, it doesnt have to be ;) S

Well, they don´t state if it´s pieces or cartons. But these are all discontinued products, and some "qty" numbers are even around 1000. I´d say if a manufacturer has 1000 cartons with 50 each displays (=50,000 pieces!!) on stock, they wouldn´t call them discontinued yet. 200 pieces is more likely IMHO. But the only way to find out is to ask them. They look nice, but I don´t see why everybody is talking about 4 line displays at the moment - except the midimon, there isn´t any midibox application supporting 4 lines. Ok, if this display would cost 4$ as well, I could ignore the other lines, but 28$ is too much for a display that isn´t really suitable. So it seems that the 2x20 is not interesting for a group order because of the positive color? The cheap 2x40 would be the other interesting LCD for me. If there´s a group order on this, I´d take a few. Seppoman

Hi, the price is very good (even better is the price for the 2x40 displays :)). If they were negative STN, I´d be very much interested. However, after looking at this: http://www.optrex.com/pdf/C-51505.pdf, I´d say this one is a positive (black on white) version (-AA). The symbol in the backlight column seems to be misleading :-/ If we´d want to do a bulk order anyway, it should be organized very fast as there´s only stock for two cartons... Seppoman

you forgot the link ;)

The 5250 way doesn´t make much sense because the precision is definitely worse than that of the AOUT_NG, and one 5250 is still more expensive than a TLV5630. Plus you need two of them. As stated in the NG-Thread, I can´t comment on the exact quality differences between AOUT and AOUT_NG as long as there was no real-world comparison. But going down to 10 bits is definitely worse than having a slightly higher INL. Seppoman