Search found 82 matches

by sk23
Tue Feb 14, 2017 7:49 pm
Forum: Music Tech DIY
Topic: Presenting: Crowminius
Replies: 1038
Views: 131599

Hi Oberlin,
thank you very much for your reply.

Everything is clear now.
Please guys keep us updated!

Cheers
by sk23
Sun Feb 12, 2017 7:29 pm
Forum: Music Tech DIY
Topic: Presenting: Crowminius
Replies: 1038
Views: 131599

Hi guys, I'm sorry to insist, but anyone could hep me? thanks Hello, I've a working Crowminius v1.1. I would like to control via midi: 1) pitch bend 2) mod wheel 3) filter cutoff With the actual firmware those control don't work via midi (I use the standard 4 pin DIN connector, no CV). Someone can e...
by sk23
Thu Feb 09, 2017 6:36 pm
Forum: Music Tech DIY
Topic: Presenting: Crowminius
Replies: 1038
Views: 131599

Hello, I've a working Crowminius v1.1. I would like to control via midi: 1) pitch bend 2) mod wheel 3) filter cutoff With the actual firmware those control don't work via midi (I use the standard 4 pin DIN connector, no CV). Someone can explain me please if it's possible to implement, and how, those...
by sk23
Tue Nov 01, 2016 6:45 pm
Forum: Music Tech DIY
Topic: Presenting: Crowminius
Replies: 1038
Views: 131599

Hi guys,
I've a working 1.1 Crowminius that came with the Crow's pre-programmed MIDI MCU, firmware spring\summer 2015.

At the time the pitch bend wasn't implemented in the firmware.
Now I'm asking myself, if there is a new firmware version and what's new.

Thank you
by sk23
Thu May 19, 2016 5:01 pm
Forum: Music Tech DIY
Topic: Presenting: Crowminius
Replies: 1038
Views: 131599

Hello, I would like to know if with the 1.1 version and so with the ATMega programmed and shipped at that time, we can automate via midi (no CV): 1) filter cutoff 2) pitch bend I would also like to know if the Crowminius is capable of making slide between notes and the velocity affect the filter cut...
by sk23
Wed Sep 30, 2015 5:04 pm
Forum: Music Tech DIY
Topic: Presenting: Crowminius
Replies: 1038
Views: 131599

I saw you didn't use the minijack sockets like I did. So try to do this, it has resolved my similiar issue: Two of the jacks need their tip and tip-switch pads (T, TS) jumpered as they complete a circuit even if the jack does not have a cable plugged in. This means you install a jumper from the top ...
by sk23
Thu Aug 27, 2015 7:52 am
Forum: Music Tech DIY
Topic: Presenting: Crowminius
Replies: 1038
Views: 131599

Hi, I feel really unlucky with my Crowminius :cry: :cry: :cry: :cry: A short circuit occurred in which Q3 and T3 have burned. Now I have replaced them. Anyway I feel that something is going wrong, because to have a stable tune I have to wait 20 minutes. Before that, the tune was stable almost immedi...
by sk23
Mon Aug 24, 2015 7:05 am
Forum: Music Tech DIY
Topic: Presenting: Crowminius
Replies: 1038
Views: 131599

Ok thank you for the infos! The 2nd option will be $599. The case, panel and knob set cost to me is just under $100 which is why I set the 1st option price at $699. The 3rd option I do not quite know the expected price yet. It will not have pots, switches, jacks or LEDs to allow the builder to use t...
by sk23
Mon Aug 24, 2015 6:25 am
Forum: Music Tech DIY
Topic: Presenting: Crowminius
Replies: 1038
Views: 131599

This is great!!! The option 3 will be even without potentiometers? It will cost less than 699$? Thank you I am going to go ahead and list pre-order inventory for assembled units. The production prototype is complete, and after Knobcon I will be getting board assembly line going. :sb: :guinness:
by sk23
Fri Aug 07, 2015 2:28 pm
Forum: Music Tech DIY
Topic: Presenting: Crowminius
Replies: 1038
Views: 131599

Hi, did you check if the OSC 3 control is on? I read on the calibration manual that should be on during the calibration. Hope this help That's great Crow. Helped a lot Osc1 & 2 calibrated good Cant get Osc 3 to calibrate. It's fine at both ends of the range but a single octave can vary by as much as...
by sk23
Wed Aug 05, 2015 2:52 pm
Forum: Music Tech DIY
Topic: Presenting: Crowminius
Replies: 1038
Views: 131599

thank you for the reply. This is my first time in calibration, but on monday I went to a technician that projects and builds euro modules, he is 50 years old and has a lot of experience in tuning new and vintage synths. He didn't menage to tune the crowminius across the midi keyboard. In my opinion ...
by sk23
Wed Aug 05, 2015 1:41 pm
Forum: Music Tech DIY
Topic: Presenting: Crowminius
Replies: 1038
Views: 131599

Thank you Medbot for the manuals. I did both indeed the tune is kept if I scroll between octaves with the octave selector. The problem appear when I use the midi input (no CV). I suppose that the problem is the value of R4 and R6 resistors, at the moment they are both 121k. If I want to use Crowmini...
by sk23
Wed Aug 05, 2015 11:53 am
Forum: Music Tech DIY
Topic: Presenting: Crowminius
Replies: 1038
Views: 131599

Guys I discovered that if I tune the synth to the high A and I switch down the octave using the octave switch the tune keep perfectly, but if I play on the midi keyboards the A at a lower octave the tune is loosed (it play a C note). So I suppose that is something wrong with the cv \ midi section. A...
by sk23
Wed Aug 05, 2015 6:34 am
Forum: Music Tech DIY
Topic: Presenting: Crowminius
Replies: 1038
Views: 131599

I have the same issue.. honestly I can't either get the scale A to A to the upper octave. A guide would be really useful. I use midi din input, and I have 121k 1% for R4 and R6. hi Crow that panel looks great, love the logo, I think I will order another board once I finish this one completely. Have ...
by sk23
Sun Aug 02, 2015 8:52 am
Forum: Music Tech DIY
Topic: Presenting: Crowminius
Replies: 1038
Views: 131599

guys got it working!!!! the sound is amazing!

the problem was that I soldered the switch's pins only on the upper side of the pcb board and probably there was a lack of connection.

Now remain only the calibration.

Thank you Crow for this amazing project and for your kind help :hail:
by sk23
Sat Aug 01, 2015 4:04 pm
Forum: Music Tech DIY
Topic: Presenting: Crowminius
Replies: 1038
Views: 131599

I did the jumper connection but the issue is still here :bang: The midi input is working but the synth emit only a click when a note is played. Low output is still not working. I've checked with beep all the FETs pin S G D that are correctly connected to the capacitors, trimpot etc All the 6.3 jack ...
by sk23
Sat Aug 01, 2015 3:26 pm
Forum: Music Tech DIY
Topic: Presenting: Crowminius
Replies: 1038
Views: 131599

thank you very much Crow! now everything is clear! Two of the jacks need their tip and tip-switch pads (T, TS) jumpered as they complete a circuit even if the jack does not have a cable plugged in. This means you install a jumper from the top pad to the bottom one for J2, and from the left pad to th...
by sk23
Sat Aug 01, 2015 1:38 pm
Forum: Music Tech DIY
Topic: Presenting: Crowminius
Replies: 1038
Views: 131599

Thank you Wahee for the input!

Crow please can you confirm that is needed? There is a workaround I could do without buying the 3.5mm Jack Sockets from Thonk?

Thank you
yes very probably as jacks should be fitted to close various electrical connections I think
by sk23
Sat Aug 01, 2015 9:45 am
Forum: Music Tech DIY
Topic: Presenting: Crowminius
Replies: 1038
Views: 131599

thank you for your help. I used and I have already soldered all the original 1/4 PCB mount jacks from the BoM http://www.mouser.it/ProductDetail/Neutrik/NMJ4HFD2/?qs=eq47NuTtZvktECFTcsfPAA%3d%3d&_cdc=0 but I didn't buy The vertical jacks because i don't need cv: http://www.thonk.co.uk/shop/pj301bm-3...
by sk23
Sat Aug 01, 2015 2:40 am
Forum: Music Tech DIY
Topic: Presenting: Crowminius
Replies: 1038
Views: 131599

Hi Crow, thank you for the reply. Yes the FETs are in the correct position, but i noticed that I used 25 ohm trimpot for R185, R265, R273 instead of 100 ohm as wrote in the notes. Same story for R233 I used 2.5K ohm trimpot instead of 5K ohm as wrote in the notes. Does these different values can cau...
by sk23
Fri Jul 31, 2015 4:36 am
Forum: Music Tech DIY
Topic: Presenting: Crowminius
Replies: 1038
Views: 131599

Hi, got the crowminius emit some "sounds". The test tone 440 is working but, I don't know if it's normal, pots and switch doesn't affect it. But when i play some notes via midi (din) I hear some clicks only, no notes or anything that the tune\octave pots affect. Low output is not working, hi output ...
by sk23
Thu Jul 30, 2015 9:27 am
Forum: Music Tech DIY
Topic: Presenting: Crowminius
Replies: 1038
Views: 131599

Hi guys, I've just finished my crowminius but no sound is emitted!! I didn't mount the leds, but even the test tone 440 is working. I tried with only one wall wart connected to J6, changed the phase jumpers (and even removed both) nothing is changed.. I'm disperate! After 3 months of hard work! I'm ...
by sk23
Wed Jul 29, 2015 6:37 am
Forum: Music Tech DIY
Topic: Presenting: Crowminius
Replies: 1038
Views: 131599

Thank you for the infos. Correct me if I'm wrong, I assume that the MIDI pitch bend will be implemented as a Crowminius MIDICV update for the ATMega chip. I will check regularly your page http://www.cs80.com/crowminius/ Thank you Currently the two DIP switches select MIDI->VCF modes. When you set DI...
by sk23
Tue Jul 28, 2015 12:03 pm
Forum: Music Tech DIY
Topic: Presenting: Crowminius
Replies: 1038
Views: 131599

Hi Crow, I would like to have some info about the midi implementation (no CV) with the your pre programmed MCU. 1) Does the velocity MIDI control affect the VCF? 2) Does the pitch bend MIDI control affects all 3 VCOs? 3) When 2 MIDI notes are overlapped does this generates a slide between the 2 note...
by sk23
Wed Jul 15, 2015 1:43 pm
Forum: Music Tech DIY
Topic: Presenting: Crowminius
Replies: 1038
Views: 131599

Hello, I Would like ti buy some of these connectors (attached image) to help me to wire these pots http://cdn3.volusion.com/scund.bojht/v/vspfiles/photos/200-100-A-2.jpg?1398344390 but i'm in Berlin so i can't misure the width of the solder lugs. Please someone that has these Alpha pots Can check it...

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