Mr modnaR

a ground loop problem occurs when you have a literal loop in the ground wire. basically it acts as an aerial, and subsequently adds noise to your audio circuits. i'm sure there are other disadvantages too. you can run two lengths of two wires along to the sid modules and the cores, although y-splitting for each core/sid is a little excessive. hope this helps.

that's a really cool idea! ecpecially the polypropolene idea! thanks man.

ok, forget the above post. ::) new idea: 6VAC input to [rectifier and 7805] and [1:2 ratio transformer]. 1:2 trafo to [rectifier and 7812]. would this work?

found this transformer. PCB mount 9vac and 14vac outputs. also -14v too!. can anyone foresee any problems with this one? cheers.

old news buddy: http://www.midibox.org/forum/index.php?topic=7410.0 ;D

i think he means on the Smash boards, there is a pcb-mount midi socket AND a three pin header (for remote sockets). in answer to your question timboroni: yes it's fine to place the pcb mounted sockets over the top. if you follow the traces, you can see that the pins on the three pin header connect to the midi socket.

'Selling as part of deceased estate' ??? Steve Irwin?

sounds an interesting concept, how controllable is the software? ie how 'computer-like' would you have to make the control surface? (track ball? TFT flat panel? etc etc....)

i'm designing a MBSEQ, and was thinking about having a long row of 16 GP buttons and encoders. the problem is that then, they won't line up with the value they alter on the lcd screens, because the screens cannot be placed close together because of their respective PCBs. what i need to know from you MBSEQ users out there, is whether or not you think this'll be a problem. my design looks better with 1 row of 16, but my spidey-sense is telling me i'll regret it when i come to use the box... any ideas? cheers

http://www.ucapps.de/mbhp/mbhp_lcd.pdf

did you get the pics from smashtv? if so, did you ask for them to be pre loaded with the boot loader? if so, you don't need to upload the bootloader again! ;D

perhaps if only the bottom line was to scroll, the select buttons would no longer correspond to the top line, as mios would know what their functions are at that particular point, but you wouldn't because it would be frozen.

with that screen, did you have to do any software changes to mios? cheers

surely if you knocked the button size down, you could find room for some motorised faders. unless you've got fat fingers obviously! ;D

glad to know it worked! look forward to seeing some pictures!!

does this workaround not work then?

it's known as the amp envelope bug, and yeah it's normal, though from what i've heard, it can happen to varying degrees of loudness. i think there's a mode you can enable on the MBSID whereby the envelope is controlled by the core, rather than the sid chip itself, thereby ridding you of the BEEPeeeeeeeeeeeeeeeee effect. i can't remember the name of it now, but i'm sure it's in the update notes for the MBSID. perhaps TK can help?

.....which is where a soldering fork comes in handy! ;D

woah, hold on a minute, are you reading the 9.05 volts after the regulator, or directly after the rectifier? is it a 7809? if so, that could be your problem. the optimised psu only works that way because it uses the 5v ground from the c64psu for the 9VDC as well, which gives a total of 14VDC.

hi, does anyone have a 40x2 lcd from Matrix Orbital? if so, could you tell me the distances between the mounting hole centres, as it doesn't appear to be in any of their documentation. is it a standard size? thanks

you'll almost always measure over 12V on a 12V trafo/psu, the fact is you need to get a trafo/ psu that is designed to output more than 12 ie get a 14VDC or a 14VAC one. it's folly getting a 12V one and thinking that because it's measuring 14V on the output, it'll work. they're manufactured to certain tolerances that allow for degradation in the voltage over time (which happens inevitably) so they build them with slightly too much voltage output to give a reasonable working life. hope this helps.

yeah, you're right stryd, they are just the caps, sorry everyone. bloody site, i wish they'd label everything properly. i could have ordered loads of those. cheers.

rswww.com do these: any of the four colours in round or square. 27p each. http://rswww.com/cgi-bin/bv/rswww/searchBrowseAction.do?Nr=avl%3auk&N=4294763100&callingPage=/jsp/browse/browse.jsp&Ntt=illuminated&Ntk=I18NAll&D=illuminated&obs=sObs&BV_SessionID=@@@@1883335768.1158945450@@@@&BV_EngineID=ccccaddilklmjjgcefeceefdffhdgmo.0&cacheID=uknetscape

what PSU were you using then? the 12V? i did say that wasn't enough....

on the sid module, you must check that: IC1:Vdd(28) and IC1:Vss(14) has 12V if you're using a 6581, or 9V if you're using a 8580. IC1:Vcc(25) - IC1:Vss(14) has 5V IC2:Vdd(16) - IC2:Vss(8) has 5V IC3:Vdd(16) - IC3:Vss(8) has 5V IC1 looks like this, looking down on the IC socket: ICs 2 and 3 look like this: