Mobenthey / Ciat-Lonbarde (synthmall) thread

[amycatass]

laid out my conrad modules on cardboard so i have an idea of good layout
feedback?

thanks,
AMY

[crucFX]

WUDNOBS.

ciat-lonbarde NOBSRINE WUDNOBS

lol I’ll add the starve switch and Mount the board tomorrow, I’m tired.

*** Update - Added a momentary switch for voltage starve/cut and it just made this infinitely more fun!!!
No vid - I don’t want to over post lol. I kinda already do… lmao.
I’ll edit this post tomorrow - since its late.

Vid as promised

NOBSRINE - ciat-lonbarde

[amycatass]

hello crucfx! was wondering if you could provide a more indepth explanation of what your modified AVDog circuit does, and how to modify it! the red circles in particular confuse me. what are they for? thanks>.

AMY

[crucFX]

The red circles are showing the spots where you tap into with an extra resistor in 2 cases - 1 being the 100k going off to the left which is auxillary in. -
The addition 10k resistor near the 220k resistor is for the OSC Out.
If you compare this image to the original AVDogs Paper Circuit, you will notice these 2 resistors are not there. I added them in Inkscape to make it easier to identify the modifications.

The 100k with the circle in front of it - instead of running it into that hole - instead - run the end of the resistor to an SPDT ON/OFF Switch (Middle Pin) and then one of the other pins back down to where the 100k was supposed to go into -
This is a switch for to turn the Oscillator On and Off.

I ended up using a Dual Gang 1M Pot and replaced both the X Resistors with this.
I added a Pot to the Y Resistor - If I remember right, this determined the delay between undulations.
Or it may have been the X resistors, I can’t remember.
Modding those 3 will change length, Pitch, and delay.

Hopefully this was what you were looking for

[amycatass]

yes!! thank you! i think i understand it now <3

thank u
AMY

did you modify the other modules in ur rollz-5 build? i want to have this kind of control over the gongues haha

[crucFX]

For Gongs - I did not put it into the diagram but you can use a pot on almost every X, Y, or Z resistor.
With USF - there are mods for it, I am just unsure of what spots. (it wouldnt be the ZZ and Z resistors - as they simply determine the volume of the output.

[amycatass]

I will try to experiment with these once i have the components. gonna try putting together a BOM for both the modded rollz-5 and my custom dogslit.
thank you for ur help!

AMY

edit: how would i modify the gongue circuit for controllable resonance?

[amycatass]

OK, i am wanting to be able to control my dogvoice’s pitch with a cv input, but the only cv inputs on the paper circuit are for volume and filter cutoff… what modification could i make to change the pitch without turning the pot?

thanks,
AMY

[cwpotter]

I don’t know this circuit very well but it looks like the P and F pots are all CV in that they have V+ on one end and 0v on the other. I’d think you could connect a cv in to the middle lug (what would be the wiper of the pot.)

[crucFX]

^ 20 chars. of agreement.

[Zeke_B]

I’ve had my eye on a Cocoquantus for some time and last night I picked up a freshly-listed Tetrax on a whim from Reverb. Your video was one of the two on YouTube that convinced me it would be fun to explore amd experiment with—thanks for making it!

I’ve spent the day reading through this post and thought it was cool to come across your video and wanted to share this with you.

[amycatass]

thanks so much! im not used to analyzing circuits yet, so im sorry if my question was boring or stupidly simple haha
i will try!1

also regarding dogslit:
Mockeup of the front panel minues twoo piezo bars on the sides (the bars will be level with the panel in the end but i wanted to make it clear what the bars were on this mockup_))

might have to rethink the jack and pot placement on this guy… hmm

Thanks
AMY

[robinrimbaud]

that’s super sweet of you to share these thoughts. Have the greatest fun now then!!

[amycatass]

now considering leds for monitoring outputs of preamps, swoops, and randos… would i just need to buffer their outputs, put them through a resistor, and then an led to ground? or is it more complex than that?

Thanks,
amy

[Zeke_B]

You’re very welcome. After going back to look, both videos were actually by you!

I’m sharing the first video below for the benefit of those who haven’t seen it, but this made my mind up for me (and then I saw the other video which confirmed)—the sound is incredible! Out of curiosity, what does that preset on the H9 entail? Sounds like a filtered (?) shimmery reverb. Whatever it is, the combo is delightful.

Ciat-Lonbarde Tetrax

[robinrimbaud]

That’s funny!

The H9 is actually running a standard preset, the Ultraswell which is ideal for pads. I’m not in the studio at present so can’t find what it’s actually made up of but presumably there’s something on the Eventide website regarding this. The H9 is a great comparison for synths too, one of the most versatile pedals around I’ve found

[crucFX]

You can run LED Drivers to them.

Its a BOM for my little LED drivers - but feel free to copy the circuit!
I would use a 1k in place of the 4.7k.
I just never bothered to change the silkscreen lol.
You can also omit the Cap between GND and Power.

[amycatass]

thanks so much! i figured it was a bit more complicated than what i thought haha
thanks,
amy

[amycatass]

On the conrad paper circuits, are the small electrolytic caps 10uF or 1uF??

thanks,
AMY

[crucFX]

I used 1μF.
Seemed to work fine