So it's been about 3 months since I started my eurorack hobbie, I still have a 84hp 3u rack (the 0-Coast isn't mounted) I switched to a 3 row setup in modular grid to plan ahead ;) I might build a new rack during winter will see.
I didn't plan to rush this in anyway so it's moving slowly I got the 0-Coast to have something functional to play with while the rack would start to have some form of functionality ;) Buying module has been a bit harder than expected, I though i'd buy off ebay mostly but i'm way out of my game lol haven't really used it since the early days, I won a few modules so far... buying from modular grid/facebook marketplaces has resulted in 0 module so far, mostly because they were already taken so I need to keep an eye out more often.
Buying from shop online so far I've learned to ask if anything is stocked before paying, some site have list but they don't always seem to be up to date. So far I had to cancel 2 order that I paid because my order was set to out of stock with no way to know when more would come...
Got to be patient and talk to people lol ;) anyway everyone is really nice so far, feel likes the early days when I was trading music tapes by mail.
So I now have a few of the basic... Ableton live can talk to the rack, sound can be routed to my mixer, things can be patched in and out to the 0-coast... got about 50 patch cables. Right now I can have basic oscillator noise with the sequencer and basic filtering/modulation. Next buy will be in the line of envelope / ADSR / random / delay / reverb and whatever I find for cheap ;)
I am not planning to have this with mobility in mind, I guess whatever I find i'll find a use for it somehow even if its just to trade later.
Things that i'm planning to get... if $$$ rain on me lol.
1. lots of make noise stuff, i'm so happy with the 0-coast i'm curious to explore the rest of the family
This is a simple analog VCO. Its “thing” is that the triangle output gets AC coupled back into the triangle core, thus self-frequency-modulating itself. New harmonic content results as the shape of the core becomes less definable. Since everything derives form the triangle core, all the wave outputs get distorted. The videos below demonstrate this.
Furthermore, the self mod control is sensitive to speed of knob rotation. If swept slowly there is no notable change in pitch. If swept not-slowly, the movement of that control will result is a momentary pitch swing. This can be “played” for effect and adds bellow or fluctuation to the pitch. If self-mod starts to near its maximum position, the VCO will go slightly flat. This can be noticed near the end of the sine video.
About the sine output. It’s nowhere near a perfect sine, but it’s pretty sine-ish. It is also inverted relative to the phase of the triangle and square outputs. If the sine is mixed with the other waveshapes (through external patching) this serves to cancel out the fundametal frequency in the other waveshapes, and only the harmonics are left. This has a highpass filtering effect and can make useful tones.
The frequency knob controls a useful audio range of about 10 – 10,000Hz. Through the use of CV that can be pushed to sub and supersonic levels. The circuit is not useful as an LFO, no voltage will result if the VCO is slowed (through high negative CV) to less than about 1Hz.
The circuit is well compensated against temperature related pitch drift, and has good 1V/oct tracking. Fine tracking adjustment can be done from the front panel via small flathead jewlers/glasses screwdriver. If overtracking turn left, if undertracking turn right. A blue trimpot on the circuit side of the module adjusts the initial frequency set.
Rosie is an output interfacing module with the added functionalities of FX Loop, Crossfader and Auto-Cue system. It is designed to facilitate live performance on the modular synthesizer by allowing the artist to preview and modify portions of a patch using the Auto-CUE system, while the audience is listening to a different portion of the patch as selected by the crossfader. Additionally it allows for Stereo processing of all sounds via the FX Loop. The Rosie is suitable for headphone monitoring of the modular system and interfacing the modular system to a recording environment. Internal Level Matching and Limiting w/ overload indication makes it easy to connect the modular system in the studio or on stage.