1

(47 replies, posted in Other Hardware)

People, it's time to ship : http://www.flickr.com/photos/mutableins … 484425264/

If nobody pops up within 6 hours, no kit for the chipmusic posse!

2

(47 replies, posted in Other Hardware)

1 kit to BTS, 2 to go...

3

(47 replies, posted in Other Hardware)

Mini update...

I've sold a small run of kits around me to see if people had trouble building the kit or if things went wrong. Everything went fine, owners are happy and have started making tunes with it: http://soundcloud.com/mutable-instrumen … 6-ignition

The first batch of 20 kits should be ready to ship next week. I've reserved 3 kits for the chipmusic posse (doing the same for other boards I'm hanging on too...) ; the rest of the kits will go on a "first come first served" basis. After that, another batch of 20 mid april ; and a batch of 10 or 20 or more for those who already have a CEM3379 around ; and I might stop here and focus on something with a more modern filter design (unless stocks of CEM3379s are uncovered).

Pricing:
http://mutable-instruments.net/order

Kit comes without a case, so if I'd rather see this go to people with cool building skills big_smile. Assembly is easy, but if you want to learn soldering, learn soldering on something mass-produced that can be purchased again if something goes wrong. Assembling instruction: http://mutable-instruments.net/shruti1/assembly
Post here and contact me by private message if you are interested in buying one of the 3 full kits I have reserved.

I would also like to know how many people here are interested in the CEM3379s-less kits, or by the bare PCBs, so I can reorder accordingly.

Thanks!

4

(47 replies, posted in Other Hardware)

Hi bleo,

I can create a csv file with the digikey references, but some other parts are available from other suppliers only, which makes the whole idea of a ready to use BOM less useful. The thing is, I didn't design this thing with the digikey or farnell or mouser catalogue under my eyes (I should have, my bad).

The culprits are:
- The extra pots for volume/input gain. If you know nice references in the digikey catalogue let me know!
- KLBRSS3-like audio connectors. I thought they were quite popular but they are not. Radiospares has the original Lumberg thing, gold-plated and expensive ; Farnell has the cheap variant I used. What's the most standard PCB-mounted 6.35 jack connector out there?
- The knobs.
- Ribbon cable + connector ; or pre-cabled molex connector. Or anything that will be less messy than having to solder 8 + 3 wild cables. Again, I ordered those pre-assembled cables with a molex connector from a components distributor in France and realized later that it was not available from other places.

Also, I haven't done the maths but I suspect that even with custom fees, it's still cheaper to order parts for 20 kits in one batch than have 20 person individually order parts for 1 kit...

5

(47 replies, posted in Other Hardware)

BTS wrote:

Are you talking about the full kit distribution?  I could see someone in a specific country (like the US) distributing kits in the US, but I don't know if it would be cheaper for them to send kits out of the country.  I think they would get hit with customs costs as well.

From Google Analytics, it seems that more than half of the people interested in the kit are in the US. The main distributors for most of the components (Digikey and Farnell for common parts + Sparkfun for the display) are in the US too, so it makes little sense to have stuff shipped to France (+ custom taxes) put in bags and sent back to the US (+ custom taxes). I don't think that at this small scale it's possible to have the custom taxes refunded just because everything is ultimately re-exported. There are electronic components distributors in France, but most of them end up being more expensive than directly ordering in the US.

I'm not making any profit on this (though I'd rather want to see the money I've invested on a small stock of parts come back big_smile) and would really appreciate if something could be organized to keep the cost as low as possible.

6

(47 replies, posted in Other Hardware)

Time frame: first 5 "beta" kits < 2 weeks ; next kits ~ 4 weeks, I have stocked parts for 20 complete kits. Afterwards, restocking for more units may take 3 extra weeks.

Prices are likely to be: PCBs only - 15€ ; PCBs + ATMega328p with bootloader/firmware + CEM3379 + display (all the non-standard parts) - 65€ ; Complete kit - 115€ + shipping. I'm paying fairly high custom taxes when ordering stuff from Digikey, so if we could find a way to organize the distribution of kits directly from somewhere else that would be awesome.

7

(47 replies, posted in Other Hardware)

Hi all,

We're really getting closer to the release of the first kits! As you have read on the blog the PCB design has been validated and a small number of units have been ordered. I've switched to a different PCB manufacturing company that is cheaper for larger volumes - I had no idea what their validation process was - so I have ordered only 5 units to check that all went well and that their output is correct. This means, if all goes well, 5 kits ready shortly after the end of the Chinese new year festivals (during which many factories are closed), and more to come soon after. I will spend some time over the weekend flashing the firmware on all the chips I have stocked and testing the CEM3379s. Indeed, I have secured a small stock of them from various sources, and have a clearer view on the supply for this chip - it's rare but not going to be extinct tomorrow.

An example with the cz-like filter (the filter modulation is directly applied during the waveform generation, it doesn't come from the CEM3379):
http://soundcloud.com/mutable-instruments/pure-digital

8

(47 replies, posted in Other Hardware)

Hi all!

I'm Olivier, the guy who designed this thing and is eagerly waiting for the final iteration of the PCB smile Thanks for linking to my project!

I have to admit that the Shruti-1 was not designed with a "soundchip" state of mind (mainly because I know emulating a SID or YM2149 is a very different affair from "phase < 0x8000 ? 255 : 0" running at 32kHz) - I tried to cover different aspects of classical synthesis. But some of its modulation capabilities and the overall rawness of the sound makes it decent for soundchip-inspired music. It emulates what would have been the SID in an alternate universe in which time flew backwards and Bob Yannes designed the SID chronologically-after, historically-before the ESQ-1.

Here's a little jam I recorded today:
http://soundcloud.com/mutable-instrumen … cochip-jam

It uses a triangle wave and a vowel oscillator and I play with the step sequencer cycle-length and later the arpeggiator's octave range.

Olivier