AO Dual Quantizer

Dud · November 10, 2020, 2:25pm

thanks a lot !!! (more carracter )

Dud · January 21, 2021, 1:07pm

@analogoutput , i have 2 questions about it.

i don’t find on the boom R23 & R24 both 1K on the PCB.

Are the PCB indication for mounting components are good ?

And also, don’t we need this components ?

thanks

analogoutput · January 21, 2021, 1:16pm

Check if you have the latest dac/ino BOM. There was an out of date one up for too long. The current one does show R23 and R24. There are numerous other differences.

Also see Quantizer build notes:

Dual Quantizer does not use:

Gate Out A and B

All pin headers (aside from 3-pin jumper headers)

VCC/Gnd Molex header

so these components can be omitted: Q1, Q2, R10–13 (don’t omit R14!), J5–J8, J10, J11, J14

eric · January 21, 2021, 1:23pm

Do I see a white front panel ?

Dud · January 21, 2021, 1:25pm

thanks a lot !
sorry another one, i don’t understand how J1 & J2 are connected .
i don’t find them in schematic

analogoutput · January 21, 2021, 1:43pm

dac_ino/dac_ino.pdf at master · holmesrichards/dac_ino · GitHub third page:

They can be male 3 pin headers, use a jumper to select the 0–10 V output voltage range (jumper on pins 1 and 2). Or just omit the headers and solder jumper wires.

Dud · January 21, 2021, 3:29pm

to be sure, like this ?

Dud · January 24, 2021, 12:14pm

for the molex connectors, i don’t find J20 on the schematic.
J8 on PCB must be don’t use, but i have J8 on schem for CV2 2.
on the PCB CV OUT A & B = J3 & J4 but in the schem it’s J9 & J4.
and i have no J1 on the PCB.

i’ll go to see your build process on your github

and again to be sure i’ll not used molex connectors, just wire so , GND = circle, and Tip = square , yes ?
thx

EDIT : i read and …

is this good plz ?

analogoutput · January 24, 2021, 12:44pm

From the dac/ino schematic:

There are two schematics, one for the dac/ino board and one for the Quantizer panel components. J8 for the former is different from J8 for the latter. The J8 for CV2_2 in the Quantizer schematic is a Molex connector on the end of a pair of wires; the J8 in the dac/ino schematic is a Molex header on the board.

Similar comments there. Quantizer J9 and J4 are connectors that plug into dac/ino headers J3 and J4.

i’ll go to see your build process on your github

Yes.

Your diagram’s good, with your permission I’ll steal it for the documentation.

Dud · January 24, 2021, 12:49pm

i better understand thanks a lot !!!

yes of course

analogoutput · January 24, 2021, 1:10pm

I added other connections

Also I changed the references in the Quantizer schematic (added 100 to all) to reduce confusion.

Dud · February 2, 2021, 9:54am

@analogoutput just to tell you that this image does not appear correctly on your page.

here

After some test with my LFO (it send positive and negative signal out), i searched and saw your “Positivizer”.
It’s a small circuit, i must add it in my Quantizer CV, but i don’t find schem. Have you one plz

EDIT : i find it on comment under your vid, it’s well that one ?

analogoutput · February 2, 2021, 1:19pm

Thanks. Looks like unlike my offline Markdown viewer, Github doesn’t like spaces in image names. Fixed now.

That’s the core of it. Of course I replicated that for a second unit, and used the usual power connection components. The 5 V came from a REF02 voltage reference.

Dud · February 2, 2021, 1:35pm

thx a lot !
i’ve made quickely a layout for it

positivizer by sound bender copie

Dud · February 2, 2021, 1:45pm

to reduce more the size of the Positivizer to put it in the Quantizer module, i have a question.
Can i take dirrectely the +12 / -12 and also the +5 on the REF02 Quantizer pcb ?

analogoutput · February 2, 2021, 1:56pm

I don’t see why not…

Dud · February 2, 2021, 3:25pm

i finished it and it work fine (very plaisant to have it), my new 3 LFO is a very slowly one like Sloth Chaos = long period of no quantiz .
but this is an old history now !
thx @eric for the idea to put it directelly on the PCB without stripboard, it’s made in 10 min and easy to add.

and a little hot glue et voilà

for more info, i had allready finished my module before the add, and i don’t use euro/kosmo power socket, so a little of hot glue on my wires.
So i connected the +12 & -12 on the output of the power diodes.
The +5V on a jack socket (CV2).
after just connect IN1 to the Jack IN1 of Quantizer
and OUT1 connect to the wire which was originally connected to IN1 jack of Quantizer.

Caustic · February 2, 2021, 4:11pm

I need to get off my ass and build me one. I was gifted one by @juggle, is there anything I need to know beyond maybe a BOM @analogoutput? Any pitfalls? Ive been trying to keep up with every thread, so sorry if ive missed something.

analogoutput · February 2, 2021, 4:11pm

Guess it’s a little late for me to point out there are three unused pads on the PCB where you could have connected +5 V (VCC):

analogoutput · February 2, 2021, 4:17pm

There’s lots to know, all here

github.com

holmesrichards/QuantizerModule/blob/master/README.md

# QuantizerModule
Code and hardware for Kosmo/Eurorack quantizer module

This is a dual quantizer based on the [dac/ino](https://github.com/holmesrichards/dac_ino) board. As such it uses the dac\_ino library as well as the Quantizer library in this repository. 

Design is for Kosmo format module but the PCB and code would work equally well for a Eurorack version if the board were mounted perpendicular to the panel. It would just need a smaller front panel. Likewise with perpendicular mounting it could be a smaller single Kosmo quantizer.

## Front panel
On the front panel, for each quantizer section, are:

- CV1 and CV2 inputs
- Quantize gate input
- Trigger input
- CV output
- CV2 attenuator
- Quantize toggle switch
- Scale selection 12 position rotary switch
- Bank selection 6 position switch

## Use

This file has been truncated. show original

and here

github.com

holmesrichards/QuantizerModule/blob/master/docs/BUILD.md

# Dual Quantizer Build Notes

## dac/ino build information
Current version uses v1.3 release of the [dac/ino](https://github.com/holmesrichards/dac_ino) board. See that repository for general building information.

**Note that the dac/ino schematic (for the board) and the Quantizer schematic (for the panel components) are two separate things. Component references below are to the dac/ino board, *not* the Quantizer panel. **

Dual Quantizer does not use:

* Gate Out A and B
* All pin headers (aside from 3-pin jumper headers)
* VCC/Gnd Molex header

so these dac/ino components can be omitted: Q1, Q2, R10–13 (don't omit R14!), J5–J8, J10, J11, J14

dac/ino CV outputs can range 0–10V or ±5V. Set jumpers for 0–10V outputs. Since CV1 is limited to 0–5V, the quantized CV1 will also be limited to about 0–5V, but the CV2 offset can change the output range up to 5–10V. If desired you can omit J1 and J2 in favor of hardwired jumpers.

Use 35 mm spacers to mount dac/ino board to the panel after wiring is done.

## Quantizer panel

This file has been truncated. show original

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AO Dual Quantizer

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