Nintendj

PSU I will be using the original C64 PSU that I got with the computer. I measured it using a multimeter and it seems fine. When I've built the regulator PCB, I will measure it's output with an oscilloscope. The 5V will go pretty much untouched to the Core module/PIC, as it is in the original C64 schematic and the Midibox schematic. The SID will be fed with 12V coming from a regulator. Here is my schematic for the PCB: I will release the complete KiCad project when it's finished.

He just updated his Status page. This means I might be able to finish the synth before school's out.

It's getting to a month for me also. I'm glad he's showing signs of life. :)

I ordered from him a week ago and sent an email with it. Haven't gotten a reply. I guess I should expect that. What has me worried though is that he hasn't updated his status page for a month. ...or a year and a month, since it has only month names mentioned. :sad:

Thank you jjonas for the reply. Why is it that SIDs are always selected in pairs, when there are no obvious stereo effects on the front panel? Are the oscillators always configured as L-R pairs or does the user need to configure them seperately? I've never touched one of these and I'm trying to figure out how to lay out the front panel, so let's say I wan't OSC 1 on both the SIDs to output a "clean" triangle wave offsetted -12 notes (bass) while OSC 2 on the left SID makes a sawtooth with no filter and a long release time and OSC 2 on the right SID makes a pulsewave offsetted +2 notes, with a high pass filter and a short release time. OSC 1 and 2 should respond to midi channel 1 (a single note triggers them both) while OSC 3 should respond to midi channel 2. Let's say I'm operating on a standard "Step C" front panel. What motions would I need to make?

Hello Midiboxers. I've decided to change this thread into my build thread. My name is Anton, I'm from Iceland and I'm building a stereo Midibox SID as a final assignment in an electrical engineer building course. An old friend of mine has owned an old C64 since childhood and since it hasn't been turned on for approx. 20 years, he & his dad agreed to donate it for my project. I will use the old brown Commodore 64 case and the SID chip, which is a 6581 (still need another one for stereo). The PCBs will be from SmashTV except for the PSU regulation, banksticks and the front panel, those I will make myself. The front panel will be a customized version of the "Step C" control interface. My custom built/modded instruments of noise I brand Anatomic Instruments (same initials as my name) and this one gets labeled 51D. No it's not l33t sp34k, it's a hex number. No I haven't built 1308 instruments prior to this one, in fact this one is my first. Stop rolling your eyes. Stop it! Anyways, this thread will be my build report and questions I have regarding the build. Index: #1: Introduction http://midibox.org/forums/topic/19104-build-anatomic-instruments-sid-build-thread/#entry167114'>#5: PSU ———————————————————————————————————————————————————— The first thing I did after acquiring the C64 was put in my order at SmashTV and design the first version of the front panel. I made the panel out 2 mm acrylic glass, which I had on hand at the moment. At work I have access to a laser cutter which can cut plastics. I cut the holes first, then painted it black and etched out the labels. I was thinking about backlighting it with LEDs, but I think it'll be very hard to diffuse the light uniformly over the whole panel. The final version will be made out of 3 mm thick solid white acrylic, which will make the labels come out white and it will be painted in the same brown as the original C64 keyboard. I will change the section labels, so that it's more easily readable and I will add the proper Commodore logo among some other fixes. ———————————————————————————————————————————————————— Original post: