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Re: Expression Pedal
what Yamaha exp. pedal could be used with a CS80 without damagingthe electronics? I was thinking of buying a replacement for my exp. pedal which got lost someday before I purchased my CS. I always thought it needed some magic pedal, but I just looked at the wiring diagram. It looks like the pedal is just a potentiometer with the ends connected to ground and tip (of a 1/4" stereo plug) and the wiper attached to sleeve (the middle contact). The CS80 puts out -15volts on the tip, so you'll get between zero (pedal up/off) and -15v (pedal down/max) on the sleeve contact. Has anyone tried this? Are there standard pedals like this (I haven't looked into this stuff in years)? Does it need a special taper pot? David |
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CS-80 running temperature issue....
Hi again guys.
I have made a stand from 12 mill plywood that runs around the sides and back of my 80 and has two shelves for some of my other gear. My question is, although there is space ABOVE the vent slots on the left hand side (power suppy)- a good 4 inches, because it has been 'walled in' so to speak, it gets quite warm in there. How much ventilation does an 80 require, and if it IS slightly restricted might that improve the tuning stability? I could always install a small fan to blow the hot air away if need be. Cheers. TOM |
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Re: CS-80 running temperature issue....
--- In yamahacs80@..., "Quazimodo" <noddyspuncture@h...>
sides and back of my 80 and has two shelves for some of my other gear.My question is, although there is space ABOVE the vent slots on theleft Tom, I don't know about the heat issue, but it would be great if you could post a picture, or two, of the stand you built. I've been thinking about building something similar, so I'd like to see what other people have done. What are other people using, other than the Yamaha stand? David |
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Re: CS-80 running temperature issue....
Hi David.
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I'll dig out my digital camera an put a couple of shots into our photo section here. I'll post when they're in there. Cheers. TOM --- In yamahacs80@..., "David Rogoff" <david@t...> wrote:
Tom, |
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Finally got my prototype discrete Yamaha CS VCO working
I decided to take the discrete VCO design I'd been leaving on the
project back-burner for a year or more and finish building the prototype. It works, but it needs a little debugging, mostly in stabilizing the frequency vs. power supply tolerances. When I get a chance, I'll record the raw output of the VCO sawtooth waveform both with and without the curious little one-shot pulse that is mixed into the leading edge of each cycle. It is only 30 microseconds wide, but it definitely makes an audible difference, and gives that signature CS 'rasp' to the tone. Here are some scope shots of the actual IG00153 VCO output to see what I'm talking about. I'll add scope shots of my discrete VCO later. Crow /**/ |
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Re: CS-80 running temperature issue....
--- In yamahacs80@..., "David Rogoff" <david@t...> wrote:
What are other people using, other than the Yamaha stand?Hey guys! Good to finaly have a forum for us here. *snickers!* My CS80 sits on top of of TWO Oberheim 4 Voices! I know. I know. I'm so ashamed. Scott |
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Re: Finally got my prototype discrete Yamaha CS VCO working
--- In yamahacs80@..., The Old Crow <oldcrow@o...> wrote:
Great stuff! I did a little web searching and found this page: You can choose pre-defined waveforms or draw your own, either by drawing the waveform or changing the levels of the harmonics. And then you can hear the sound! As you'd expect (assuming you're into fourier series and the math of music), the pulse on the sawtooth increases the harmonics (brighter tone). David |
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Re: GX-1 for sale (from Analog Heaven mailing list)
开云体育no.....no.......nooo..........noooooooooo.noooooooooooooooooooooooo..........NOOOOOOOOOOOOOOO!!!
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Re: CS-80 running temperature issue....
开云体育damn scott,
do you have any rooms left to rent?
im a 'reasonable' clean person, can tell boring
jokes or dull stories for food.
And the stories about me being a satanworshipper
are somewhat exagerated, depends on your interpretation of pagan?blood
sacrifices. other then that i would gladly move in sometime
tomorrow.
?
but seriously, nice place you've got
there!
david
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Re: GX-1 for sale (from Analog Heaven mailing list)
开云体育I thought this was the one at RAK studioss (of the
late Mickie Most) but this seems to be another one. Nice to see them popping up
that often... this will lower their price considerably 8).
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Stephen.
?
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"Human beings are a disease, the cancer of this planet, you?re a plague.
And we are the cure." (Agent Smith / Matrix)
?
Visit the official [?ramp] website at
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GX 1
开云体育The home organ version of the GX-1 they?re talking
about could be the GX-707. I remember vaguely that I once saw a GX-1 pictured in
German "Das Musikinstrument" publication, and they referred to it as the GX-707
which looked like a dead ringer for the GX-1, with its three fridge-sized
speaker cabinets. I?ve seen two different versions of it, one with square preset
selector buttons, the other with round buttons. Gordon Reid also refers to
various different incarnations. Anyhow, what I?ve heard come out of a GX-1
(ABBA?s "The way old friends do" is a prime example) really makes it desireable.
Although a CS80 in full flight with some proper tweaking can sound quite as
nice...
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The only other visual dead ringer for the GX-1
could be the EX-42 organ which uses the same housing but a different technology.
It?s also aimed at a different sort of clients, really.
?
Stephen.
?
?
"Human beings are a disease, the cancer of this
planet, you?re a plague. And we are the cure." (Agent Smith /
Matrix)
?
Visit the official [?ramp] website at |
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What mods would you want?
Hi all.
I'd like everyone to contribute to a list of everything you'd want added to the CS80 (besides the anti-gravity device). I'm trying to come up with what I'd want to add and I'm wondering what other people have added, or thought of adding. Here's a few: MIDI This is a biggie, since it could mean many things: MIDI in MIDI out Notes, pressure, ribbon, program change Others??? Auto tune Something like on later Prophet 5, including microtuning. Digital patch storage Also like P5, and other late '70s polysynths: scan panel controls, digitize (fast & high resolution!), save to flash. We could really go crazy with this and replace the Panel sliders with motorized faders! Oscillator Sync between sounds I & II. Unison modes (like Kent is working on). Split keyboard / Multitimbral. Release velocity. For some of these, especially trying to do several at once, the keyscanning and modulation distribution boards would basically get replaced. Lots of work! Please comment/add your own! David |
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Re: Finally got my prototype discrete Yamaha CS VCO working
--- In yamahacs80@..., "Christopher_S_Rider"
with and without the curious little one-shot pulse that is mixedinto the leading edge of each cycle. It is only 30 microseconds wide,but it definitely makes an audible difference, and gives that signatureI just found this site: . Apparently, the weird pulse is done on purpose! David |
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Re: What mods would you want?
Synth80s
Hey David!
You've got big plans already, I see.. ;) I'd love the ability to route the audio input through the filters -- yummy! Why not make it stereo while you're at it?!? -Bradley :: Hi all. :: :: I'd like everyone to contribute to a list of everything you'd want :: added to the CS80 (besides the anti-gravity device). I'm trying to :: come up with what I'd want to add and I'm wondering what :: other people :: have added, or thought of adding. |
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Re: What mods would you want?
Rory Mc Donald
Hi all.
I'd like everyone to contribute to a list of everything you'd want added to the CS80 (besides the anti-gravity device).? I'm trying to come up with what I'd want to add and I'm wondering what other people have added, or thought of adding. Here's a few: MIDI This is a biggie, since it could mean many things: ? MIDI in ? MIDI out ? Notes, pressure, ribbon, program change ? Others??? Auto tune ? Something like on later Prophet 5, including microtuning. Digital patch storage ? Also like P5, and other late '70s polysynths: scan panel controls, digitize (fast & high resolution!), save to flash.? We could really go crazy with this and replace the Panel sliders with motorized faders! Oscillator Sync between sounds I & II. Unison modes (like Kent is working on). Split keyboard / Multitimbral. Release velocity. For some of these, especially trying to do several at once, the keyscanning and modulation distribution boards would basically get replaced.? Lots of work! Please comment/add your own! David |
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Re: Finally got my prototype discrete Yamaha CS VCO working
Yes, I have that set of Yamaha engineering notes. In fact, that page
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you indicated was my primary guideline for the discrete version. I think the reset pulse is to guarantee a full waveform reset (full capacitor recharge) at the higher frequencies such that the pitch doesn't start to go flat. That page also shows why tracking of the VCOs is such a pain; the transposition setting resistor (Rft) has to be exact for each desired octave, which is why there are trimmers for each one. If the Rft value for a given octave is off even slightly, the tracking goes south. I have my prototype CS VCO running into my production CS filter. It sounds very nice. :) I'll record some audio clips this weekend. In other news, I built and tested the NE11000 VC-BPF as used in the GX-1, and it works great..except that I wired the resonance pot backward. (The original NE11000 did not have a variable resonance control; it only had a trimmer that was set and sealed for a Q of 4 or so). Crow /**/ On Fri, 27 Aug 2004, David Rogoff wrote:
I just found this site: |
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Re: What mods would you want?
Here comes my wish list:
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Auto Tune, most definitely. Indicator LEDs on each voice board that show you which is active (if theres no auto tune possible and you have to tweak them in tune yourselves). External stabilized and regulated power supply, built to military standards (which might solve some temperature-based problems. If not, it makes the instrument 20 kg lighter... which is a good thing if youve moved house as often as I did in the past). Less noisy built-in Chorus/Tremolo with an input level / output balance pot rather than just on/off. Ventilators (heavy duty computer fans, temperature-controlled). Lighter enclosure 8)... I wouldnt want anything that potentially puts the playability of the CS at risk (like MIDI which I deeply mistrust anyway, but MIDI and CS80 go together as well as Chocolate Sauce and Smoked Eel). No, seriously, folks, I am not one of these snobbish purists whod say all innovation is bad right from the start but I think its just hard to find anything as immediately satisfying as far as musicality is concerned as the CS-80. I wouldnt want to control it from somewhere else, and I wouldnt want to use it as a master keyboard controller, either, as most other synthesizers are not designed to respond the way a CS80 does. Using it within a setup should always bring out your musical wit and your musical skills, rather than having its track perfectly synced to your other stuff. Stephen. "Human beings are a disease, the cancer of this planet, youre a plague. And we are the cure." (Agent Smith / Matrix) Visit the official [ramp] website at www.doombient.com ----- Original Message -----
From: "David Rogoff" <david@...> To: <yamahacs80@...> Sent: Saturday, August 28, 2004 12:27 AM Subject: [yamahacs80] What mods would you want? Hi all. |
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