Jason / Instruo / [previously Qu-Bit] here.
Probably time I formally introduce myself! I’ve been slightly overwhelmed since launching the troika video!
First off, thank you all for the positive response to the module and video. I ultimately built it for myself and have had the idea for a video series for a while. I didn’t really consider the next step after publishing it and it seems there is some interest in the troika beyond just the video!
The module in the video is literally the only one in existence at the moment, but after reading all the comments here and on youtube and reddit.. I am now in some discussions and am prepping to bringing out a production version!
One thing to bear in mind: I don’t think the brass plate aesthetic will make it to the market version, it’s not at all practical for production cost efficiency. Shipping costs would also be mad, brass is really f’in heavy! My rig is getting less and less portable as I install new prototypes! (yep! more modules to come)
If people are interested in having the steam-punk look, I’m planning to do brass plates myself small scale at home (although I may need a CNC upgrade). I guess this will be a custom shop option, I can do tweaks and mods as well if anyone has particular needs
Here is a run down of the specs:
• All the oscillators are a purely analogue saw core design
• The crossfaders give a variety of mixes between the waveforms, between the three oscillators.
• Osc 3 has PWM with CV
• Linear FM with attenuator and phase sync inputs on all the oscs
• toggles for cascading the 1V/oct inputs to the lower jack's normalled connection
• Individual outputs as well as a mix output with level for each osc amplitude
• current draw… not sure exactly, but it’s an efficient circuit I’ll be surprised if it passed 100mA +12 and ~70mA -12
I am extremely happy with the 1V/oct tracking consistency and stability between the three oscillators! I really took my time calibrating them all together and because of the consistency of the matched transistor pairs between the circuits, they all track beautifully together.
A suggestion brought up by mildheadwound caught my attention:
Having the coarse and fine knob roles switched, so the fine has the bigger radius for frequency control.
I honestly have never thought about that! Makes total sense to me, I think I just got use to big coarse little fine and stuck with it.
Would it be worth taking a poll or something to see what is the preferred setup?
I’ve since added a solder pad jumper to the PCB design for the production version which will allow users to perform a simple mod to switch the controls round. Seems like the most diplomatic approach.
I’ll still need to decide what the default configuration is.
To TrondC, good eye!
That is indeed an octone, not a DIY version (although most of my rig is built by hand).
It’s just funny looking with pink buttons and violet LED’s. Gotta have that consistent aesthetic yo!
I designed the octone, learned a lot from it and am planning a sequencer as an Instruō future built.
Any requests of suggestions for features most welcome! I’m considering doing a video tutorial series documenting the whole module as I design it.
Now, on the topic of Qu-Bit… as some have already worked out I am no longer affiliated with them.
I was one of the two co-founders and have possibly met many of you during our journey as the company grew.
You noise fanatics all helped get me to where I am now!
I designed all the Qu-Bit, and 2hp hardware up until the recent Wave and Chord modules.
I developed the prototype Chord that I showed off at NAMM last January, it was 4 analogue oscillators with wave shaping, VCAs etc. I’m still very proud of this version of the module and its response in January.
Qu-Bit seem to be leaning towards a more commercial approach with design. Creatively, I prefer this weirder more artistic direction.
Instruō started out life as an EP I’ve been working on, the track in the troika video (also titled troika) is from this EP and uses the module which I engraved with “Instruō” not really thinking it beyond the video!
In any case, I’m feeling inspired now and am going to get back to designing some synths!
If anyone has any requests for a module type they’d like to see design videos of, please hit me up!
I’ll hint at this, I have a transistor ladder LPF on the way which is a nice match for the troika.
Thank you all!
Jason || Instruõ