Davo
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Posts posted by Davo
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Hey, Smash. Would you please check your PM regarding those chip tubes? I'm not set on anything in particular for trade.
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I've been thinking of a combination midi mega-splitter/merger to speed things up and avoid the need to turn everything on if I just want to play with one device. From first glance, this looks like it would do the job nicely.
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I'm still wondering just what this Junkbox is intended for.
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In the wake of a recent project, I have a considerable number of empty chip tubes. Some had chips in them and were marked "anti-static". Others had chip sockets in them and were not marked "anti-static". Should I just ditch the ones not marked? Is there really a difference?
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I don't see any electrical reason why you couldn't regulate the power before it goes into the midi cable. I'd prefer to regulate it afterwards for versatility purposes. For example, you find a wall wart that supplies about or just above the voltage you need and you don't know it's regulated or not.
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Smash, looking at the new DIN module, it looks like you have it such that one can use either SIP resistor nets or discrete resistors. Is this correct?
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Try using a tiny smear of epoxy to secure the tube to the switch shaft.
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What I like most about this front panel is how you managed to put all the controls of TK's prototype into a single rack unit AND make it look good.
Here are some things I'd do with the design:
- Shift the operator/instrument lights left a bit to line them up with their respective select buttons.
- Replace the round buttons below the LCD with rectangular ones that fill all the horizontal area there. Look at the faceplate of a Yamaha TX802 (http://www.vintagesynth.com/yamaha/tx802.shtml) to see what I mean.
- Shift the operator/instrument lights left a bit to line them up with their respective select buttons.
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I asked this on rec.music.makers.synth, but nobody seemed to be able to help. In the manual for the Yamaha TX802 (rackmounted version of a DX7mk2), it says that the RAM4 data cartridge contains one bank of memory and that in the future there may be cartridges with as many as 16 banks. Does anyone here have the schematics of the RAM4 data cartridge or know how to make this legendary 16-bank cartridge?
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There are some typos on your panel ("close", not "cose" and "Operator", not "Opperator"). Otherwise it looks very sweet. When I finish my MBSID, I'd like to make my MBFM with a front panel like yours. You will release the design file, right? ;D
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The midi interface is now sold.
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I'd just like to let everyone know that this interface is still available.
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Is it okay to tie all the DIN ground connections together? Is it okay to do the same with the DOUTs? Is it okay to connect DIN grounds to DOUT grounds?
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It's the firmware-loading that bugs me. On top of getting things working correctly with a new notebook (Thinkpad T42, see http://www.thinkwiki.com), I'd rather not have the extra hassle of firmware that needs to be loaded.
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I bought a Midisport 1x1 USB midi interface on Ebay about a week ago and now realize that it doesn't play well with Linux So, I'm offering it to someone here who uses Windows. $25 obo to the continental US. See this unit at http://www.m-audio.com/products/en_us/MIDISPORT1x1-main.html
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Does anyone here know if Machinae Supremacy is aware of the Midibox platform? I know they use a Sidstation. I was wondering what they might be able to do with a quad sid.
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http://www.play-hookey.com/ is also very good for explaining basic electronic theory.
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This sort of thing is frequently done by arcade game tinkerers; particularly those who play with MAME. See http://www.mame.net/ Look up "spinner" and "mame" and you should find some howtos.
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I finally got the parts together to start building my SID frontpanel. Some months ago I bought some rotary encoders from Smash. I just now finished the panel that will go behind the LFO section on the frontpanel. While testing it, I was a bit baffled by what the rotary encoders did. I was under the impression that these encoders would briefly connect the inner terminal with one of the outer terminals depending on which direction the shaft was turned. Instead the inner terminal seems to be constantly connected to the outer terminals and this connection is briefly interrupted whenever the knob is turned. How are rotary encoders supposed to behave? Do I have a bad batch?
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I don't clearly understand what din-sync does. I know that a C64 running Prophet-64 can be controlled with din-sync. Now if you connect a keyboard to a C64 through a midi-to-din converter, are you now able to trigger notes on the C64? Or is din-sync only good for syncronizing to clock pulses? ???
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I would have countersunk those screw holes. Even then, it's a very slick job and a worthwhile use of that hard drive case.
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It looks to me that this is not intended for sticking random rackmount things in. Instead, you mount the boards in the bottom and cover with the panel. Is this right?
The shape of that thing looks perfect for not only my midibox synths, but for the ASM2 as well. I'd make mine out of half-inch plywood with the intent of it being permanent. http://colomar.com/Shavano/rackcase.html has info on making rack cases from plywood. It shouldn't be too hard to adapt those designs to your wedge case.
Now, for whatever goes into this thing, I'd put all the modules on some platform so it can be lifted out and quickly remounted in a standard rackmount case. Hmm... Just rambling.
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hi Dave,
I've got a schematic in a book.. my scanners playing up right now... but it uses a 555 and a 4017 counter, 555 for the sound, 4017 mainly for driving some led's to show time visually....the accent is done by hooking up a piezo to the first output of the 4017 so that the first beat of the bar is accented...
more 4017 tips here... http://members.shaw.ca/roma/thirty-four.html
Mmmm... It looks like a 4017s, 555s, and some seven-segment drivers can provide a metronome as originally specified.
MIDIBox Theives?
in Sale Requests
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Was anyone here able to load http://www.midistation.com.ar/?