dwestbury

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Everything posted by dwestbury

  1. MB-6582 Parts List Pivot View

    You definitely don't need all of those voltage regulators. it all depends on which of the power supply options you go with. As of now, there appear to be 5 options (A-E). Personally, I'm going with option E, which is the standard 12v "wall wart" supply This requires a swItching regulator that’s not listed. Cheers!
  2. MB-6582 Parts List Pivot View

    Apologies if this is redundant, but I didn't see a similar post anywhere else in the forum, so I thought I'd share.. As I started to piece together my bill of materials for an MB-6582, I realized I would have to do a lot of sorting and counting from the tables in the wiki.  I decided to copy & paste into a spreadsheet for easier pivoting and here's what I came up (Wilba’s Base PCB parts list only. Assumes 4xCore & 4xSID Modules. Includes all optional parts):   Description Value Count Bridge Rectifier W04 400V 1.2 Amp 1 Capacitor - Ceramic 1nF 16   33pF 8   470pF 8   470pF or 22nF 16 Capacitor - Electrolytic (Radial) 100µF 1   10µF 10   1µF 8   2200µF, 16V 1   2200µF, 16V (or 25V) 1 Capacitor - Monolithic 100nF 39   330nF 1 Crystal 10MHz 4 DIN Socket 5-Pin 2   7-Pin 1 Diode 1N4148 5 Header 10-Pin 4   2-Pin 9   3-Pin 23   4-Pin 6   4-Pin Dual row 1   5-Pin 18   8-Pin Dual row 4 IC 24LC512 - 512K EPROM 8   6N138 Optocoupler 1   74HC165 - Shift Reg (Parallel to Serial) 5   74HC595 - Shift Reg (Serial to Parallel) 11   PIC18F4685 Microcontroller 4   SID 6581/6582/8580 8 IC Socket 16-Pin 16   28-Pin 8   40-Pin 4   8-Pin 9 Potentiometer - Rotary 500K - Dual Gang 4 Potentiometer - Trimmer 10K 5 Resistor 1.2K 4   100 Ohm 4   10K 30   1K 34   220 Ohm 20   5.6K 1 Resistor network (5-pin or 6-pin) 10K 10 Stereo Phono Jack with Switch - 4 Toggle Switch Double-Pole, Single-Throw (DPST) 1 Transistor BC337 1   BC547 16 Voltage Regulator 7805 1   7809 2   7812 1 Grand Total   399   Here's a link to the full Google spreadsheet, which includes links to component images and part specs from Mouser: https://docs.google.com/spreadsheets/d/1W_rSaFLbwFaQK3IYP7jA541KzWgE5w33ZtJJ27wmT1Y/edit?usp=sharing   Cheers!      
  3. As I mentioned in a different thread (see below), it was really fun to get SIDplayer mode up and running, but there are a number of shortcomings that take away some of the fun (i.e., no support for 2SID or 3SID tracks, MIDI not being able to keep up with the performance needed to play digi tracks with digi samples, plus some other odd playback glitches). I'm also lucky to have an Ultimate 64 from Gideon (https://ultimate64.com/Ultimate-64-Elite), which supports two physical socketed SIDs. The SID playback there is really nice! You can even combine playback from your real SIDs with multiple instances of the built-in FPGA UltiSIDs (i.e, The Tuneful Eight). Of course there's simply no substitute for the sound design possibilities and the live playability of a MIDIBox SID, so I guess the use case is just different. Probably not helpful feedback, but just sharing some thoughts... Cheers    
  4. Lot of SIDS for sale

    I’m in no way affiliated with this eBay seller, but this came up in a search, so I thought I’d share. A lot of 12 SIDs are available. So, if you’ve been putting off building a MIDIBox SID due to parts availability, now might be the time to reconsider? https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk%2Fitm%2F283767607715
  5. Has anyone attempted to design a custom PCB daughterboard that could attach to the 20x4 character LCD on the MB6582 and avoid having to solder the IDC cable directly to the display?  I've never done such a thing (I'm a complete newbie to DIY electronics), but I was playing around on EasyEDA and came up this design, which could (theoretically) allow you to connect an unmodified cable. Thoughts?
  6. PCB Daughterboard for 20x4 Char LCD

      As expected, the pin conversion board works perfectly! Kudos to @Altitude for the design and for sharing! Big thanks to @latigid on for pointing me in the right direction!  
  7. PCB Daughterboard for 20x4 Char LCD

    Update: the mini-PCBs have arrived from OSHPark. Took about 1.5 weeks end-to-end, including int’l shipping to the US, so not bad. Hope to have time to solder and test tonight.    The mInimum order was 3 pieces, but I should only need 1. Happy to send extras to anyone interested, at no cost for the PCB - just cover the postage.     
  8. SIDplayer / ASID Application for OS X?

    UPDATED: These steps work with MacOS Catalina 10.15.2: 1. Download and compile midi_patchbay from here: https://github.com/notahat/midi_patchbay 2. Download and compile SIDPlayer 4.2, with TK's modified ASID code here: https://github.com/mselin/sidplay4-asidmod 3. If you're a N00B like me, you'll need to create a developer ID with Apple and substitute this for the DevID in the code, as well as the team name, in order for builds to work. This might be obvious for a real developer, but I had to feel my way through that 4. Start midi_patchbay, then start SIDPlayer 5. Go back to midi_patchbay and configure the MIDI input as ASID OUT and set the MIDI output to your MIDI interface 6. Power on your MIDIBox SID, then switch back to SIDPlayer. You should now be able to play SIDs with no issues! (very cool indeed!) However, you'll notice that SIDPlayer doesn't seem to recognize or support any 2SID or 3SID files (I.e., tracks from Jammer, PCH, MCH, etc.). Would be wonderful to know if someone has managed to work that out!   Cheers~    
  9. Sammich kits on eBay -- legit or bootleg?

    OK, I finished off the last few fiddly bits of the build, so now I can officially say that "It's Done" and more importantly "It Works!" So, needless to say, I'm a happy customer... Full N00B disclosure of the areas I struggled with, include: -Soldering ANYTHING with a larger ground connection (example voltage regulators) - After much troubleshooting, I realized I had to redo all of the machine pins that connect the control surface and base PCBs. I hadn’t made them long enough to to establish good contact. But, honestly everything else was really straight forward and it’s been a very rewarding experience to work on and play with the results. I can’t say enough about the collective efforts hat went into the design, documentation, programming, etc. a real community effort. As I’ve said elsewhere, I’m already working on a big brother MB-6582 project, so I can have multiple instruments playing at once. I know my experience with the Samm1chSID will come in handy... Some pictures of my build: https://www.icloud.com/sharedalbum/#B0nGWZuqDGT9FaZ   But, now comes the inevitable ethical question... If I did actually buy Chineese knockoff components, is anyone getting cut out of their commission on the PCBs, etc. (i.e., Wilba, TK, nILS, etc.) or are the volumes likely so low that it’s not a big concern? Thanks again  Cheers all!   
  10. Sammich kits on eBay -- legit or bootleg?

    Well, I’m done with the build now and I can confirm that all the voltage checks worked out, so the PCBs seem OK... I did have a problem with the 7809 voltage regulator and the LCD screen, but that could have been partially my fault (I am a newbie with fat fingers after all). I used MIOS to upload the v2_044 firmware, although my family has become impatient with me, so I need to break away for now. More testing and hopefully final status tomorrow (expecting a second 6581 in the mail tomorrow as well).    
  11. Sammich kits on eBay -- legit or bootleg?

    Well, I'm building it now.. The kit seems to include all of the required parts. Nicely packed, labeled and separated, etc. Hopefully it will actually work! Cheers  
  12. Sammich kits on eBay -- legit or bootleg?

      I had been wanting to build a sammichSID for a while, but I couldn't find any PCBs or kits. Finally I found a listing on eBay for a full kit which I've ordered, but now I'm wondering whether it's a bootleg... eBay Listing: sammichSID with 2 x SwinSID installed / MOS 6581 8580 / SID Station synthesizer In the attached image you'll notice that the label near the SID jumper shows 6580/6582, as opposed to 8580/6582. Perhaps a bad copy?   
  13. PCB Daughterboard for 20x4 Char LCD

    @latigid on great advice and appreciate you taking the time to review and comment.. Sticking with a 45 degree angle rule makes sense moving forward. It was a fun exercise for me to work out the design. Learning a ton from the pages here!   Cheers! -Darrell  
  14. PCB Daughterboard for 20x4 Char LCD

    thanks @latigid on - I like the @Altitude design much better! Just ordered 3 of them... Cheers!  
  15. I know this is a super old post, but I just wanted to drop a thanks to @julianf for making my awesome front and rear panels. His price was much better than going direct through FrontPanelExpress (close to half the price actually). Will show pictures of my final build when finished.  https://photos.app.goo.gl/3m8DmJkedtSEYzjW8  
  16. [Sold] MB6582 PCB Set and parts

    @before Still Available?
  17. WTB : MB 6582 WINDOW

    Hello everyone... Almost done with my first ever MB-6582 build... Been working on it intermittently for an embarrassingly long time, but finally in the home stretch. Wondering if anyone knows where I could get this LCD window part? https://youtu.be/WIup9BhivuY (the part makes it's first appearance @ 1:35) edit: perhaps @kHz-tone could advise? Cheers!