Lo-Fi_Massahkah

Hi Afro! I bought an old brown C64 at a local indoor flea market for 200 swedish kronor (about 22 euros). I'm glad I got the whole computer, since I can use the case and keys for other DIY projects (I'm itching for a MidiBox Seq). There's been talk on this forum about people selling faulty SIDs - I guess you'd be better off buying a complete C64 (or 128), since you can see how worn it looks and if it's been taken apart for spares. You could easily get one on Ebay for less than 20 euros, but then there's the shipping... This forum is great if you run into problems - I'm certainly not one of the experienced builders here, but if you have questions feel free to ask away! Good luck, Mikael

Is that you, Afrokid? Cheers, Mikael

Finally! I made it... :D Well this might be a rare combination - don't know how many people own a G2 (key) and has built a MIDIBox SID (www.ucapps.de) without control surface. But this patch is for you! It's actually a performance since not everything would fit into one slot. Here's a short roundup - please mail me for further information! * Use in global mode - all synth controls are layed out to the knobs and buttons. In a fairly logic way...  ;) * Slot C has a WT replacement to make it easier to sync to midi clock. This is only accessible from the G2 editor (for now?). * Slot D has charge over the mod matrix. This wouldn't fit on the global parameter overview, so it has it's own assignment. Access this when global is switched off. * All midi CCs are updated when changing variations (all those connections ate a lot of memory). I have programmed eight sounds for your listening pleasure. * There is a simple effects section in slot D if you wish to patch your SID through the G2. Controls are available in parallell to the mod matrix. Enjoy! /Mikael Download the .prf at http://www.electro-music.com/forum/viewtopic.php?t=6056

Thanks, my friend! That alcohol seems to have no affect on you what so ever... ;) Cheers, Mikael

Hmmm... When reading this again - I get confused. ??? How can I send a CC above 127? /Mikael

Thank you very much, StrydOne and Sjakie! Sleep or no sleep these are excellent explanations... :) I'll continue my patch today! Regards, Mikael

Hi, I'm trying to build a MidiboxSid controller in my Clavia G2 - so far so good. But I'm having problems understanding the following from the CC-implementation: I don't understand the "bit 6-4" concept, and I can't seem to figure it out backwards since only Tri waves are mentioned in the example. It should be stated that I really haven't done much Hex/Bin calculations... ever! :-\ Any help would be appreciated! Cheers, Mikael

Thanks Thorsten, I should have been more observant to put it in the right forum. :-\ Wow... Is it really this simple - seems to good to be true! Cheers, Mikael

Hi, I have four joystick pots lying around since I tried to mod my UC-33e. I have a BCR2000 so I don't really feel the need to build a controller MidiBox. But none the less, I'd like to use those pots. Here's my idea... I'm building a MidiBox SEQ2, and I was thinking maybe I could incorporate the pots in that project. Not to deal with the actual sequencer, but rather as a means to send CCs on a given midi channel, for example. I guess I'll have to get an AIN board, but is there an easy way of adding the extra code to the PIC, making the function available in parallell to the sequencer? Regards, Mikael

Allright! ;D I'm convinced! Thanks for your time. /Mikael

Thorsten, Are there any ergonomics that I'm not considering, except for the fact that it won't be alligned with the pots and buttons? Thanks, Mikael

Thanks Thorsten - you're quick! So that would mean that I could replace the 2 LCDs with one, for the SEQ project...? Cheers, Mikael

So what would happen if I put a 4x40 on the SEQ2 instead af the double 2x40. Anyone have the answer? Regards, Mikael

Did anyone get this to work? I'd like to edit patches either via my BCR2000 or prefearably my Glavia G2. I got the BCR to send the above sysex to my SID, but I can't really get it to work. Ideas? Cheers, Mikael

Thanks Torsten, I'll continue my quest for optimal sound with your clues in mind... /Mikael

Thanks Moebius, Annoying, but at least I didn't do anything wrong... :D /Mikael

Well, I went down the easy route - I just cut the lo EQ on my mixer. Gets rid of most of the hum. But then I hear a high pitched sound, very vaguely, but it's there. It also seems to follow the pitch of what I played last. Alas it's in tune with the SID. What?!?! :o ??? Cheers, Mikael

Thanks everyone! I'll try to get everything sounding a bit less hummy... Have a good weekend, Mikael

Thanks guys! OK, bare with me... I have a simple tele female connected to the SID-out. When connecting the tip to the positive, I get a (seemingly) noisier output, but no hum and a weak (high pass-like) sound from the synth. When connecting the ring to the positive, I get a almost silent output. No noise. No synth. When connecting the tip to ground, I get the noise again, but no hum. Only weak clicks from the synth. When connecting the ring to ground, I get a almost silent output. No noise. No synth. ...by the way... What is an isolation transformer. Thanks - you've been really helpfull! :) Kind regards, Mikael

Smash, I'm running a 15V/500mA AC wallwart adaptor to power both the CORE and the SID. The SID out is plugged into a Behringer UB1622FX mixer on channel 1 (mic-amp not active). The problem here is that I'm a complete novice when it comes to electronics. Building this has been like building LEGO. I just follow the schematics, but I have no clue as to what goes on. So when you say: ...I really don't understand! :-[ But I'd be very thankfull if you'd guide me through this. Regards, Mikael

Jausa! I made it... I posted last weekend (in this thread) moaning about how I couldn't get started on my MBSID although I had all the parts lying beneath my desk. Well, here it is! Thanks for kicking me in the right direction! It runs pretty cool, sounds very cool, but has a significant ground hum. I'll try and get to terms with that! Well if you have a solution - don't be shy! Cheers, Mikael

Jurbo, Actually I also purchased my kit last summer, but didn't get to building it until now. Guess I'll just get those capacitors elsewhere. Regards, Mikael

Thank you, Sir! That makes everything much clearer. I'll notify Mike & Claudia. Regards, Mikael

Hmmm... I've just (almost) built my SID (6581) module and I'm missing some capacitors in my Claudia kit. I notice that the .pdf for the schematic at ucapps.de is ver. 1 while the Eagle layout data is ver. 2. There are some differences. Will I be OK if I go strictly by the layout data (ver. 2)? In that case I'll have to get the extra capacitors that were missing from my Claudia kit. I'm missing the following: One 470pF (C4 in my case) One 1nF (C6 in my case) Also C9 on schematic (ver. 1) is a 2200uF/16V (as was delivered), but a 1000uF/25V on the Eagle layout data (ver. 2). This is too confusing for a newbie like me. Would anyone step in and shed some light over this? Thanks, Mikael