“Do their job” as in “you’ve assembled it and it works”?

The step sequencer is more for programming modulations than melodies – think of it as a super programmable LFO. But it should still be possible to do what you want to do by routing, in the modulations pages, the sequencer output (seq) to the oscillator pitch(es).

ok, my reichelt parts arrived (still waiting for lcd). yesterday i mounted them. i used some variations. for resistors i used the metalfilm type (not because avatar is such a great movie (which it is not), but because i seem to remember that they have less 1/f-noise). also i used higher quality sockets for the curtis-chip and the opamp (again, for audio quality).
and then i used "TASTER 3FTL6 - Multimec" for the buttons (i used them before and like them and hoped that they would fit (should have looked)). they need to have the legs twisted to fit through-hole, but they do that surprisingly well and exact. the power-jack from the part list does not fit at all,btw.

as i forgot 3 caps i did not test yet.

Those prices include VAT. Shipping is ok. I do like those multimec switches (they do exist in led-variant, but not at reichelt), but schadow digitast is quite nice, too (i use those for my seq) (will you include pullups for the buttons in the next shruti?). they do have alps encoders and pots. as for connectors, they do have neutrik (myself i'll rather use offboard connectors and screw those to the case)

Reichelt is very good and cheap option but when you are in France you have to order more than 150 € ... if it’s less they don’t send parts to France …
I’m very interested too to order parts for my others shruti in that site but my order is around 40 € ...

I’ve prepared a BOM for the Shruthi-1, I managed to get down to 4 suppliers (Reichelt, Xiamen Ocular, Digikey for the keys and pots, Farnell for the knobs, audio jack+some ICs). Will try to get rid of Farnell. Very attractive price!

The Shruthi-1 design is stable – I mean, I don’t think there’s much I’ll have to tweak hardware-wise – but as I’ve learned, it’s hard to get a PCB right from the first iteration! Todd (from narrat1ve) will have a quick look at my layouts – after that I’ll order protos and I’ll assemble them. If they turn out well I will get a bunch of people to build it (interested?). If there’s something wrong, add a 3 or 4 weeks for a “troubleshoot, revise, reorder, rebuild” cycle. And maybe one more :( A conservative estimate is 2 months for a first version. I’ll ramp up slowly and will send the first kits or PCBs to experienced builders.

A specificity of the Shruthi is that a variety of filter boards will be made available – at the moment there are two (the new LM13700 based VCF/VCA, and a board which uses the same CEM3379-based section as the Shruti-1), but I’d like to design one more with two SSM2164s (one for the VCF, one for 2 linear VCAs) ; and maybe one with a SSM2164 (VCAs) and a SSM2044 VCF.

Meanwhile, I’ll be busy with the docs. There are still a bunch of things to do for the firmware, but I’m making good progress!

Meanwhile, I’m also getting and checking samples from several LCD manufacturers in China and HK. I’ve discarded two of them, and should receive in the next days samples from the manufacturer that do the stuff for Sparkfun, and from one that can do backlights with fancy colors. The plan is to order a rather large stock of LCDs directly from one of them – even if I don’t use all of them for the Shruthi-1, they will go for my next projects or I’ll resell them.

When I bought my parts I tried to avoid ordering from Digi-Key, because they want 18€ for shipping. 18 bugs is what I payed for the parts themselves at Reichelt.

@efluon: The Multimec switch looks nice. Somehow more solid than the digitaster. And I found the LED switches at Reichelt. For example the “TASTER 3FTL620”...

@pinchenettes: instead of your audi jack you could use the “EBS 63P” which might be a bit more standard (?). And if you need help finding parts at Reichelt, just send me an email.

BTW: I would recommend a group buy thread.

The “EBS 63P” has solder tags instead of pins, which requires slotted holes. I was a bit wary about those because the PCB proto house I used in the past did not do them, and the place where I get the PCBs now require an extra fee for them. But it would make sense to have super large pads on the PCB, and 6 holes – so you can use either a mono connector with round pins (Neutrik NMJ4HFD2), or a stereo connector with round pins (Neutrik NMJ6HFD2) – in which case the extra stereo pins are unconnected but soldered for more stability ; or even the EBS63P after a bit of dremelling of the holes.

The BOM I made yesterday night was a first draft… Heck, I’m not even sure the proto will work fine :) Within a couple of weeks I’ll open the github project and share the BOM spreadsheet… I’ll let you do all the optimization to come up with the coolest and cheapest BOM :) Let’s call it the “50€ digital/analog hybrid monosynth challenge”.

@efluon: last time I checked, R+S France was really expensive, I’ll give it a second look… Maybe they have all that I need from digikey.

Regarding the Alps pots… The one they have on Reichelt do not have a D shaft, and they are more expensive than the Panasonic clones I can get on digikey, especially in large bulk. One thing that I found strange at Reichelt is that their prices do not drop for large quantities, which makes the concept of a group buy less interesting.

Another source for serial LCDs: http://coolcomponents.co.uk/catalog/

that would be great. unfortunately i have to pay taxes everytime i receive electronic components from the US as soon as its value’s more than about 40€. last time 2 weeks ago for WTPA components 9€ taxes for a value of ~48€.
(germany too)

About jack output i found them on reichelt

http://www.reichelt.de/?ACTION=3;GROUP=C161;GROUPID=3237;ARTICLE=7303;SID=26trK0dqwQARoAAGL6I8g5220f8fbd60725a251863c14e85eefbb

Very good news :-)

One question about reichelt… The payment seems to be by bank transfer only… Is there a credit card option? Is it only for german customers?
Maybe bank transfer is a normal means of payment in Germany… Here in France, it’s really a pain…. (though I could do that online very easily when I lived in Switzerland).

from outside germany the payment options are cash-on-delivery or advance bank transfer only (or something very evil paypal-esque that you really should not do).