HybrisBehemoth

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About HybrisBehemoth

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    MIDIbox Newbie
  1. Starting MB6582 build

    Thanks for the link! I have ordered some of the recommended 1N5817 Schottky diodes. Now I just have to wait for the Chinese mailing service... I could get my hands on some 1N5819 Schottky diodes right now. Forward voltage is a bit higher than 1N5817: https://www.diodes.com/assets/Datasheets/ds23001.pdf Any opinions about using 1N5819 instead for reverse polarity protection on PSU option E, only 9v SIDs, 12V wallwart?   After looking at the PCBs it seems to me that placing the diode like drawn in the picture would do it. Correct?   
  2. Starting MB6582 build

    Doing some work on this today. I'd like to reverse-polarity-protect the MB6582. I assume that one of the left over 1N4148_T50A https://no.mouser.com/ProductDetail/512-1N4148T50A wouldn't do for this job. What diode would I need? And where would be best to place it? Was thinking about some of the unused (right now bridged) connections for the bridge rectifier B1.
  3. Starting MB6582 build

    Congratulations on the finished build duckchild. :) I haven't had much time for building lately. And of course I found this site https://www.parasitstudio.se/ , and thus another project to add to the pile of unfinished ones. I'm sure that I am the only one on this forum who owns such a pile... This weekend, however, I got some time for the MB6582 and finished the control surface. I didn't get the buttons to line up perfectly. So attaching the front panel was a real pain. (My girlfriend actually suggested that I open a window so I wouldn't break it if I was to throw the synth out through it.) I really hope that everything works when I have finished. Because I really don't want to do that again with 100+ LEDs to think about as well.  
  4. Starting MB6582 build

    It is indeed. Good catch :)
  5. Starting MB6582 build

    The LCD wont show anything (except maybe a series of squares where the characters are supposed to be) without the PIC. Or did you mean that the backlight wont turn on?  I would just go ahead and burn the PICs. You will be able to tell if it worked when you connect to mios on your PC via MIDI.
  6. Starting MB6582 build

      I used this PicKit (which should basically be the same as 3.0) and adapter. Worked fine. Found this video useful:  
  7. Starting MB6582 build

    Pictures working now? No worries about using the thread. As you wrote; since we're both building. I did PSU option E, which seems to be working well so far. All the guides found here has been super useful! I'm planing to use a standard 2.1 jack. The only problem is that my panels have the big 17mm hole for the DIN-jack. Has anybody found a nice solution for this? The disc-solution came to mind for me as well. But I haven't looked in to it further. I like the multi-coloured-legos kind of look to the knobs! Are you going to do those colour changing LEDs as well?  
  8. Starting MB6582 build

    Working along slowly but surely here. Soon finished with the main board. Passed all the tests without any major setbacks so far. Just managed to get some first sounds out of the SID. :D The 10 uF electrolytic caps I got were way too big and the film caps are a bit bulky (as you can see). Luckily I had some electrolytics lying around.    
  9. Sammich FM

    It is. One of my first DIY-attempts. Would have gladly bought it through this community instead. But that didn't seem to bee an option any more. 
  10. Starting MB6582 build

    Thanks everyone for the informative feedback!   Decided to go with power option E and 8580s only. Really cool solution with the PCB-panels! When I saw it I had already ordered case and panels from http://thebeast.co.uk/ though. I have (finally) gone through the BOM and created my Mouser shopping list (can be copy/pasted here https://no.mouser.com/tools/part-list-import.aspx):   512-1N4148T50A|100 688-SKHHDT|50 604-WP424HDT|115 652-PEC16-4220FN0024|15 313-1250F-100K|4 161-MJ355W-EX|1   575-11044640|5 575-1104762841001000|10 502-PC722A|1 502-57PC5F|2 550-20301|4 710-860040478015|1 710-860241375002|10 647-ULD1E101MED1TD|1 647-ULD1H010MDD1TD|10 75-2C20X7R334K050B|1 581-SR215C104K|38 75-1C20C0G330J050B|8 505-FKP2.022/63/2.5T|16 581-SR211A102JAATR1|16 594-K471J15C0GF5UH5|8 858-36FR10KLF|5 264-10K-RC|10 610-BC337|1 512-BC547BTA|16 859-6N138|1 579-24LC512-E/P|8 595-SN74HC165N|5 595-SN74HC595N|11 579-PIC18F4685-I/P|4 774-ATS10A-E|4 511-L7809CV|1 532-577202B00|1 532-574502B03700G|1 919-R-78B5.0-1.5|1   660-MF1/4DCT52R5601F|100 660-MF1/4DCT52R1201F|100 660-MF1/4DCT52R1001F|100 660-MF1/4DCT52R1002F|100 660-MF1/4D52R1000F|100 660-MF1/4DCT52R2200F|100   Doest this look OK? Any suggested changes? Correct ICs, transistors? I went for longer lifespan electrolytic caps. Any opinions on those? Better options for the SID filter caps ( 505-FKP2.022/63/2.5T )?     I'm leaving the fan out. Got these heat sinks for SIDs and PICs. Might be too tall... How much space is there between the PCBs?:  https://www.ebay.com/itm/8pcs-14x30x8-mm-DIY-fans-cooling-Heatsink-Aluminum-Profile-Cooler-With-Tape/123021408514?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m2749.l2649 https://www.ebay.com/itm/12pcs-10x35x10mm-Extruded-Heatsink-With-Thermal-Tape-Aluminium-Profile-For-DIP/112681555348?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m2749.l2649 Also ordered this dirt cheap display. Measurements look good. Any opinions as to whether it will work with the PIC? If not; suggested display from Mouser/EU-supplier?: https://www.aliexpress.com/item/1pcs-LCD-2004-20x4-Character-LCD-Display-Module-HD44780-Controller-Green-screen-backlight-forarduino/32691168548.html?spm=a2g0s.9042311.0.0.400f4c4dSOqlAZ Also ordered a PicKit3.5 as I should be able to use that to program the PICs, right? https://www.aliexpress.com/item/new-1set-PICKIT3-5-PIC-KIT3-5-PICKIT-3-5-Programmer-Offline-Programming-Simulation-PIC-Microcontroller/32847321104.html?spm=a2g0s.9042311.0.0.400f4c4dSOqlAZ https://www.aliexpress.com/item/PIC-ICD2-PICKit-2-PICKIT-3-Programming-Adapter-PICKIT2-PICKIT3-Universal-Programmer-Seat/32730403341.html?spm=a2g0s.9042311.0.0.400f4c4dSOqlAZ Wasn't quite sure how much current the 7809 would have to handle if I got 8 8580s sometime. Thus I wasn't sure how big a heat sink is needed. So I got two options and plan to mount the biggest one I can fit into the space between the PCBs. 
  11. Starting MB6582 build

    I just ordered the switch here for €6 including shipping in EU: http://www.demand.nu/retrotech/r8017l-r21.html  
  12. Starting MB6582 build

    I basically got in to DIY-synths a couple of months ago because I wanted to be able to build a MB6582. After building a Shruthi XT and a sammichFM kit I'm starting to feel ready for the challenge. So I bought the PCBs from Modular addict and read through all the documentation I could find here. Just getting ready to order the parts from Mouser and have a few questions before doing so.   - Does anybody sell pre-burnt PICs for the MB6582? I assume I need 4 pre burnt ones if I want to use all the slots? - I have an original C64 power supply. It turns on. But when I tested the voltages referencing https://www.c64-wiki.com/wiki/Power_Supply_Connector I get 5,29 V DC between pin 2 and 5. But between pin 6 and 7 I get 11,06 V AC. I assume this means that the supply is starting to fail and that I need to look for a new one. Any suggestions when it comes to buying a newly produced C64 supply for this project? - I'm probably going for PSU option B. Currently I only have one 8580 SID and I might stay with just 8580s, but I want the flexibility if I do get 6581s... if there isn't any drawbacks compared to PSU option A that is... heat etc.?  - I assume the Modular addict PCBs are the same as "revision 2 PCBs" from SmashTV, and that there are no errors to correct as in the first PCBs? - Are there any better display options out there now that will work with the PCBs and the PT-10? OLEDs? Would that require switching out other components? - Any recommendations for a fan? A very quiet one would be great. - I'm not at all sure what heat sinks to get from Mouser. Suggestions? - The front panel seems to be the most expensive part! Looks like I can get one for 85 £ (I'm in EU). Any other options out there? Did anybody try 1,5 mm laser cut acrylic? Not sure if it would be sturdy enough. - What PCB-mount on-off switch (from Mouser) would work with the panels and PT-10?           Thanks for any input.
  13. midiphy SEQ v4+

    Really looking forward to building this. Thankful for the great effort of everyone involved in the project! I might have missed this while reading the threads, but is there a Mouser BOM so that I can order the components needed. I want to be ready when I finally get my hands on the PCBs. :)
  14. Sammich FM

    The jumpers by MS1 are in place. The jacks are stereo. Here are some pictures. This is my first synth-build so I'm sure there is a lot to be said about soldering quality. ;)
  15. Sammich FM

    Thank you for the input and sorry for being a total noob and not reading the MIDI troubleshooting before posting. Got the software up and running now and I get sound out of the sammichFM. Its just really low and with a lot of static noise. Is this a power supply issue or are there other possible explanations? Also: on the main PCB there are headers "JPB" in the top right corner. What are those for?