Davo
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Posts posted by Davo
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Our high school eletronics teacher used to teach "Bad beer rots our young guts but vodka goes well – get some now."
What does "now" represent?
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Does anyone here know whether or not Mark Mothersbaugh or any of the other Devo members has a SID synthesizer of some sort? I'm listening to the latest Devo album "Something for Everybody" and I seem to hear something SID-like now and then, especially on track 12 (March On).
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When I saw this post, I thought you were going to suggest running current through the two pins that MIDI doesn't use. It's interesting and full of potential trouble.
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I still want to get my hands on the masks and make exacting duplicates. It shouldn't be too terribly expensive to tool up for a 30-year-old design.
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Is there some way to shift that website into English mode? My German isn't good.
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Who has the masks for the various revisions of SID? I wonder how much it would cost to have more made.
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Julian, I found this, which claims to be your work. Would something like that work with the MB-6582?
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I was reading the Wikipedia article for the Elektron SidStation and found a strange statement that there are aftermarket clones of the original SID chips. What are these aftermarket chips and who makes them?
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Paia used to carry a dirt-cheap rackmount box without a faceplate that was decent enough. I have a rackmounted Paia Fatman and I didn't want the guts just hanging loose. For a rackmount panel of the MBSID, check the regular .fpd file at http://ucapps.de/midibox_sid_manual_fp.html and drop it into a 3u template in Front Panel Designer.
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Are these sized for the aluminium desktop chassis?
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Nifty. Maybe it's time to semi-officially take over custody of JSynthLib since nobody else but the Midibox community seems to want to keep it up to date.
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Yeah. I'm wondering about that too. I'm thinking of going to FPE to finish things up, but I don't have the chassis yet.
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So, if you can run MBSEQ on an iPad, how do you get midi connectivity?
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I have an SX myself, but it's missing the keyboard cable and one of the keyboard latches is broken. Anyone have spares?
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Don't cannibalize that SX!
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I designed two circuit boards using optical interrupters to replace the contact in Wurlitzer, Rodgers and Gulbransen keyboards. I did this for some Garden State Theatre Organ Society instruments and my own instruments. The circuit boards have eight interrupters each, so a 61-note keyboard requires eight boards, one of which has to be cut down to 5 circuits. One of the circuit boards has the optical slot parallel to the keys and the other is perpendicular. each note has an optional LED indicator to make it easy to adjust the trigger point.
On the Gulbransen, I mounted the boards at the back end of the keyboard and cut thin brass strips to act as flags that block the light path. On the Wurlitzer keyboard, I mounted the boards under the keyboard, using the original Wurlitzer contact bars as the optical flag.
So far they have proved to be highly reliable. The cost is about one dollar in parts for each note plus the cost of the circuit board. The circuit can use anything from 5 volts up to power the optical isolators and LEDs.
A dollar per note is more like it. Where can I find out more information on this scheme?
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I think Ponoko is the route I'll take.
All you Dremel-users ought to check out the Proxxon line of rotary tools. I've come to the conclusion that Dremel is okay as long as you don't want to use attachments.
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Those are from mouser (http://www.mouser.com/catalog/catalogUSD/642/1903.pdf), but should be available from any electronics supply
I found them in the latest Jameco catalog.
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I seem to recall someone being able to make windows for protecting LCD windows. Who was that? Are windows still available?
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I just noticed that there may not be enough clearance between the SD slot and the expansion port to accomodate a D25 plug and an SD card at the same time, or at least allow one to swap cards while the plug is inserted.
Another thing... Analogue sequencers (ie Dotcom Q960 or Moog Q960) are capable of being used as complex waveform generators if you run the sequencer fast enough. Midi is too slow for stunts like this. Is MIOS capable of driving CV outputs that fast?
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What connects to to the inner side of the CV expansion port?
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I chanced upon a pair of Pratt-Read keybeds from an old Hammond organ, so I thought I'd come up with some sort of optical means of detecting keystrokes. While investigating how to do this (particularly with some conversation with Seppoman), I came to the conclusion that doing so would involve an unreasonable parts count and high cost. At up to two dollars apiece, 44 slot or reflective detectors get rather expensive. Furthermore, I'd need a comparator with each key unless I use a more costly detector with logic output. I've decided to instead use a Fatar keybed.
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Are you saying either of these chips can substitute for the DAC in the AOUT_NG? What makes "worst case" such that only 12 bits are honored? This sounds like a worthy line of investigation. I have one of the first generation of AOUT boards that'll eventually be used to interface to some analogue stuff. Maybe it's time for me to get an AOUT_NG board.
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I'd be pissed if I had to deal with quality control like that.
Sammich for $600 on eBay
in Miscellaneous
Posted
Relisted and sold for $450.