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rvooh

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Posts posted by rvooh

  2. LoopA V2 Introduction, Features & Support Thread

    in MIDIbox User Projects

    Posted

    11 minutes ago, Hawkeye said:

    @rvooh no problem! Just out of interest: what would be keeping you from having the LoopA (or the SEQ v4/v4+) generate a clock all the time and just enable the tracks when you want them to play?
     

    For example, a TB-303 needs to be "stopped" to program it. But when clocked with dinsync it will "freeze" the moment it doesn't get any clock. The only way to program it when it is slaved to a device (= when a cable is in the dinsync input) that doesn't send clock when idle, is by yanking out the dinsync cord (which is really not practical, nor recommended as this is a fragile connector).
    My main sequencer (Squarp Pyramid) sends clock when idle (it also has a setting to disable it for people that don't want this). Actually most gear I have does it. One exception is the Alesis MMT-8, exactly the device I was hoping to replace with the LoopA, which I now have to use when a dedicated external clock for this reason.

  3. LoopA V2 Introduction, Features & Support Thread

    in MIDIbox User Projects

    Posted · Edited by rvooh
    typo

    Thanks Peter for explaining.

    It's more about compatibility with old machines that need to be "stopped" for programming, but can't be programmed without getting clock (they will just freeze), and how certain clock convertors (dinsync) prefer constant clock. The Midi spec allows both, though between the lines they sorta recommend sending clock when idle.

    That's bad news for me though as I was planning on using the LoopA as a master clock in my small studio, and glad I asked before I started sourcing parts.

    Hearing that it's also like that on the SEQ V4 make me suspect that it's not something that could be changed easily in software.

  6. One MB-6582, One Power Supply: a Tutorial

    in MIDIbox SID

    Posted

    look at your picture, bottom right corner: the double line on the silkscreen is visible and the part is overlaying the pcb traces, which suggests the printed side is facing outwards. The legend for pin 1 is correct of course.

    in all other pictures, the parts printed side is facing inwards, the double line on the silkscreen is covered and the pcb traces are visible.

     

  7. One MB-6582, One Power Supply: a Tutorial

    in MIDIbox SID

    Posted · Edited by rvooh
    Update

    A while ago I did this mod on one MB6582 and it didn't work. Due to lack of time I didn't troubleshoot it, so now I'm doing the mod on another MB6582, double checking every step.

    One thing that confuses me is the pic in the initial post.. It seems to have the Recom part (V4) installed backwards. 111f1FqGis.thumb.jpg.f089256d640f4f270e0

    Compare to all other pics in this thread it is installed differently. Looking at the datasheet / pin 1 location, it does seem like the pic is wrong, or its another part/form factor.

     

    EDIT: End up building it like I expected worked fine.. Took the older mb, reversed it and bam, works too now.

  11. Retrogamesupply PSU for MB-6582

    in MIDIbox SID

    Posted · Edited by rvooh

    https://en.retrogamesupply.com/products/power-supply-for-commodore-64

    It comes at a steep price point (€70.00) but it seems very much suited for use with the MB-6582 with much attention to safety:

    Quote

    New Replacement Power Supply for Commodore 64 and 64C

    Work with every revision and model of Commodore 64.

    Work in every region of the world (100-240V 50/60Hz).

    Use a standard 2 prong AC cable, EU and US cable is only available at the moment.

    Output :

    • Regulated DC 5V 2A
      • Protection : overvoltage, overcurrent, temperature and short circuit.
    • Regulated AC 9V 1A
      • Pure Sine Wave
      • Protection : overvoltage, overcurrent, soft-start and short circuit.

    Unlike the dangerous unregulated 5V of the original PSU which can detroy your Commodore sometimes, this power supply will provide regulated 5V with every protection.

    The AC 9V is created by a pure sine wave generator, using this method allow me to remove the 230V/9V transformer, reducing the weight by 50% and removing any hum noise coming from the power supply.

    This power supply can remove or reduce the noise coming from inside the C64.

    It can also reduce the heat emission of the Commodore.

    The 5V and 9V line are isolated from each other like the original PSU.

    The power DIN to DIN cable is always include (design may vary depending on stock).

    1 year warranty.

    Shipped from France.

     

     

    I'm planning to order a few (for myself & friends with similar build), unless anyone tells me not to..
    I'm quite scared to use the original C64 psu and I don't want a bulky solution using 2 separate wall warts.

  12. CAN bus not working

    in MIDIbox SID

    Posted · Edited by rvooh

    @TK. thanks a million.. my issue was a broken trace underneath PIC 1, causing discontinuity between pins #36 (see attachment). It's fixed now.
    probably happened cutting the ic-socket, more than 7 years ago.. doh! There wasn't any visual scratch to be seen though...

    Enjoy the beer :cheers:

    mb6582fix.png

  13. CAN bus not working

    in MIDIbox SID

    Posted · Edited by rvooh
    added some more info

    @TK.

    Wow, it's been almost a year since I followed up on this.. 
    I still have the problem. All my cores have the latest firmware installed, and have correct device id's and respond when I query them with MIOS.
    Just the cloning wont work, and selecting SID 2..4 from the control surface says "CAN DISABLED".

    I have almost exactly the same pcb next to it, stuffed with same parts, which does not have the issue. Checked D1_COREx orientation, R80 and such. Removed all cores, checked continuity between D1_COREx's and their respective pin on the CORE
    Quite clueless atm. Hints are welcome :)
     

  18. Encoders that SmashTV used to sell

    in Parts Questions

    Posted

    I've got about 10 pieces with integrated push button and 20 without. Got them from Smash some years ago but decided not to use them in any project because I thought they feel cheap when in original state and get even worse when the detent is removed...

    No idea what the original price was, let's say I'm asking 0.50 Euro each? If you want them just PM me your postal and paypal address :)

    S

    PM sent :sorcerer:

    (actually i'll send one after posting this ;))

    yeah I must agree with you, they "feel" terrible, especially without the detent. It kind surprised me as the wiki and ppl on the forum say they're very good quality. I expected Bourns to be good brand anyway..

    What encoders do you use then? I'm considering not using mine too.. It's a big project and I'm going for pretty high standards (all alps tact switches, machined socket ic feet, crimped connectors, machined socket pins).. It would be a damn shame if those encoders aren't good enough to last in it. So far the feel is disappointing but I can live with that as I expect it to change during usage.

  19. Encoders that SmashTV used to sell

    in Parts Questions

    Posted

    Hi

    About 2 years ago I bought 45 encoders from SmashTV.

    I read about them here: http://www.midibox.org/dokuwiki/doku.php?id=encoders

    There it says it's Bourns PEC11-series (there's no marking on the encoders itself).

    Problem is they're not so good as I would want them to be.. In fact I just killed one by simply tightening the nut, which ripped out the shaft and can't be repaired. I'm sure I didn't over-tighten (it was in acrylics frontplate, the acrylics would break first).

    Maybe I just had a dodgy one, the others didn't cause any trouble so far. Fact is I'm pretty much screwed now:

    I've been stupid not to order any spares :(

    If anyone has some leftover, could I please buy them? Preferably a bit more than one to be sure.

    If anyone could add the exact part number for them on the wikipage, that would help too :blush:

    I removed the detents from all of mine, except 3 which will be used for menu control.

    I'm ordering from farnell this month, in case someone knows of a comparable type there.. I could use a comparable type for the 3 in the menu, important is a D-shaft because otherwise my buttons wont fit.

    Thanks.

  24. Wie wil ook 13mm ALPS SKHHDTA010 switches? (voor mbsid e.d.)

    in Nederlands

    Posted

    ALPS SKHHDTA010, high-quality tact switches, niet te vergelijken met goedkopere varianten.

    wil deze gaan bestellen bij Mouser en verzenden is gratis vanaf 75 euro

    http://be.mouser.com/Search/ProductDetail.aspx?R=SKHHDTA010virtualkey68800000virtualkey688-SKHHDT

    ze kosten € 0,306 / stuk

    Ik heb er zelf 150 nodig, das al 45,90 euro.

    idealiter komen er nog 100 bij, vanaf dan is het verzenden gratis (20 euro in the pocket)

    Dus als iemand uit BE of NL 50 of 100 van die switches nodig heeft, laat even vlug weten..

    Switches op te halen aan de Belgische kust of voor kleine meerprijs opgestuurd.

    All prices include duty and customs fees on select shipping methods.

    Free shipping on most orders over € 75 (EUR)

    Er zit wel haast achter dus gelieve nog voor het eind van deze week aan te melden.

    GO GO GO ! :D

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