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EFI - third mode question from noob

Hi all, First of all, this is a 100% noob question - so apologizing up front :) I got the EFI filter. There's a third mode where you get overdrive in the low pass mode. The documentation I can find mentions the jumper on the back. But I can't find any specific information on what you need to do to the module in order to get the overdrive? Is it a specific placement, should the jumper be removed - or what do you actually need to do? I am really breaking my head around this :)


Thanks a mil, /t

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Thank you so much for your help, really appreciate it.

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Full Envoltura manual

Hi,


I picked up a Pusherman built module.


https://www.st-modular.de/file-share/73ed0224-7d5c-47d6-98dc-0f86826387d0


Mistakenly has the manual for the Euphoria.


Is there a full Envoltura manual?


I'm a beginner and the QSG unfortunately isn't enough.


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Thanks, I'm so sorry, I'm still confused, I can get the Envoltera to "work" in a patch by adding my MST dual VCA, see my "got it working" post on page 2 here:


https://www.modwiggler.com/forum/viewtopic.php?t=288783&start=30


The MST is a VCA, Envoltera has an internal VCA, I should be able to remove the MST?


If I can remove my MST, where do its IN, CV and OUT cables get plugged into on the Envoltera?

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A few troubleshooting questions for a few modules.

Hey there,


I have built several modules over the last month, all of them with prepopulated SMD from Calsynth. Most of them have been built without a problem. However, I have a few that are giving me some issues.


The issues:

Hans: Output lowers in volume significantly when I turn up resonance, but resonance only really becomes noticeable when the knob is turned past 75% or more. This doesn't seem like the correct operation when compared to the demonstration video.


Singer: I love the sound of this one, but I'm only able to use the A side, putting audio into the B side does nothing. Also I'm getting low output volume from the module. My Alstaden is really loud, but it feels like its volume halved when I plug it into Singer.


Influencer: I'm sure I've located the problem with this one. When I initially plugged this one in, it…


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Thank you for such a quick reply Stefan. I really enjoy your designs. I am up to 15 of your modules at this point! I did some testing this morning and took some pictures that I will attach.


Chasing Lights

First, thank you for reassuring me about the resistor at RB_C is the one I need to modify for the running lights on my Chasing Lights. Ill experiment with some thru hole resistors I have on hand to find a resistance that lowers the brightness to a point I like and then order the appropriate SMD resistor.


Influencer

I was apprehensive about plugging this one back in, but took the chance and hooked it up. Perhaps it was a bad IDC cable connection on my initial test, as this time it worked without issue. I hooked up a few other modules on the same bus and they did not lock up this time. I will order the missing part and test again to make sure it is good to go.


Singer


Full Dry Signal

50/50 wet/dry

Here is a scope test of Singer. A basic sine out of Alstaden. At full dry, the output is around 75-80% of the original signal, and much less at 50/50. The LFO works as intended, at least on the A side. If I flip the switch to B the LED lights up, but I get no signal at all if an oscillator is plugged in. I do get BBD chip noise oscillations out of the output when I crank feedback. My new issue is that the VCA is not working for either A or B. Putting CV into the input does not effect the incoming signal at all. I tried both an LFO and a static voltage. Perhaps that may be my B side issue, considering I can hear chip noise, but not input noise.


Hans

I do understand and expect lower output with increased resonance on filters, it is fairly common and I have others that operate similarly. That being said I still feel like it is not operating correctly. With resonance at 0 and cutoff fully clockwise my output is less than 50% of my input. I do not get subtle resonance at noon on the knob, only further lowered output. Resonance is only barely noticeable at 75% and beyond, but barely audible. In the following pictures the top sine wave is input, and the bottom green trace is the Hans output.



100% Cutoff, 0% Resonance

100% cutoff, 50% Resonance



100% Cutoff, 75% Resonance

100% Cutoff, 100% Resonance


Again, thank you for the help! It's excellent that you take time out of your day to reply back, especially for a DIY project. If you need pictures of the boards themselves I am more than willing to do that as well, just let me know.


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Case Power V2 problem....

Hey,


i got only +5V and -12V output. On the +12V i got only 5V output.


Please can you tell me what the problem is? Maybe the L4 is not correct? Wich position is the correct one for the L4? Now i got Pin 1+4 and 2+3 connected on the PCB.


Thanks a lot.

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Stefan
Stefan
Apr 26

Hey Michael, You can solder L4 either way. Your issue must be somewhere else. So, the LT1930 is soldered properly, no bridges between the pins? Cheers, Stefan

Edited

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Jack nuts and knobs

Hi It's me again :P


Where can I source those amazing looking jack nuts and the knobs for the potis.


Cheers,

Peter.

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stobbert
Apr 17

Hey Peter,


Check out Pushermanproductions.com and their pot nuts and also the pushernuts for sockets → https://pushermanproductions.com/?s=nut&post_type=product Cheers, Stefan

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Case Pow V2 BOM

Hi,


Please share the Mouser BOM for the Case Pow. I can't find it.


Cheers!

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Stefan
Stefan
Apr 17

Hey Peter, Thanks for pointing that out. It was in indeed missing. You can now find it in the Support Section → Case 42HP. Have a great sunday! Cheers, Stefan

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JTAG Pinout (Drum, Trommelmaschine)

Hi Stephan,


I've found no description of the JTAG pinout in the BOMs or module descriptions and just to be sure: from looking at the traces in the IBOM I think this is the correct pinout. Can you confirm this?



thanks and best regards

Andreas

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Stefan
Stefan
Apr 17

Hey Andreas, That's right, here's another picture to illustrate the JTAG pinout:

JTAG Header Trommelmaschine
JTAG Header Trommelmaschine













I hope this helps! 🌞


Best,

Stefan

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1u ToolBox Jumper

Hi! I just finished the 1U toolbox, Please explain to me (but like to a 5 years old) how to use the jumper on the back, I'm not shure if i understand it right.


Cheers!

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Peter
Peter
Apr 17

Thanks! Would it make sense to make a small switc accessable on the front panel for this?

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Honeyeater Schematic Request

Hello.


I'm having difficulty with a DIY Honeyeater build from a pre-populated PCB and Panel set. The module produces output from the noise circuit and sets noise output volume appropriately from the related potentiometer but does not produce waveforms at the output. The TRI / SAW potentiometer and PLS / SUB potentiometer do show activity on scope when turned. The pots appear to generate voltage offset at the output when observed on the scope. Both of those pots also seem to offset the noise output on scope when those potentiometers are turned as well. I've followed as many traces as I've been able to confirm visually and seem to have appropriate continuity between components where it would be expected. I've also reflowed the connections that I soldered to double check for good connection points. A schematic would be helpful to a deeper dive with testing / troubleshooting. Is t…


40 Views
Stefan
Stefan
Apr 17

Hey Scott, I recommend focusing on the IC holder for IC1 and the mixer circuit around U1 and its surrounding components. I've sent the schematics to your email. Best,

Stefan

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