Divinital_ wrote: ↑

Tue Mar 31, 2020 8:37 pm

Flounderguts wrote: ↑

Tue Mar 31, 2020 7:40 pm

Good 4th post. Keep it up.

Mr. Behringer Shillington, sire extraordinaire

*tips fedora*

M'Behringer.

+1

Welcome claudineskiles! 1) All of these sounds except the birds chirping start with a noise source. Noise sounds like the static between FM radio stations. It is filtered and shaped by an envelope and VC Amplifier to get the various sounds you've listed. The birds will start with an oscillator inste...

Agawell gave good replies already. Format jumbler can include banana jacks too. Here's a link to the MakeNoise version https://postmodular.co.uk/modules/format-jumbler/ There are many different versions of 'format jumblers' having all sorts of jacks. Depends on what type connectors you have in your ...

On their website, Mutable Instruments-and a few others- list the directives their modules meet. You can start there. As you've noticced, not everyone follows all the rules. There's quite a bit of look the other way in the Eurorack world with regard to directives and rules. It's admirable you're tryi...

Thank you, sduck. She's a beauty!

I think you both make good points.
Like I said, it's a good goal.

The question is whether it matters as much as all that. Vintage analog synths have been using the simple method with 3% tempco parts -which are often much worse in 3350 PTC adherance than the 3% implies. And yet we have generations of 'wonderful' music from them. You can find on this site and others...

And this

This

sduck wrote: ↑

Mon Mar 30, 2020 12:56 pm

I've got one in my MOTM 5U system (not the same design as pictured, I made my own)

Got a pic or a link to pic of yours?

1) Format jumbler mults. To deal with different patch connectors.
2) CV and audio Mixers. To make the most of what you've already got.
3) Attenuator offset utility modules. To most effectively use 1) and 2)

Note to synth manufacturers: An arpeggiator should always be syncable to external MIDI and external CV/gate, and it should always TRANSMIT the arpeggio signal via MIDI and CV. I don't understand why so many synths have arpeggiators that can't transmit their note pattern to other synths! I agree in ...

Curious about the PCBs, though - as far as I can tell it pretty much looks like single-sided bare solder traces sitting atop the PCB, so I'm unclear on how it would be possible to "ruin" them (as compared to more complex boards where you can pull up the traces from under the coating, or where there...

Rob_C wrote: ↑

Sun Mar 29, 2020 7:55 pm

Yes, those are five volt regulators in the schematic.

Another cool John Simonton 'hack' that is good to keep in mind as 78xx in older less-used and so strange values disappear.

Socket is fine, but overly expensive if you're willing to re-drill the submodule mounting holes to .073" . The extra material needed for the tail on the one you linked which allows mounting in the original main PCB hole makes for extra cost. Otherwise it's ok. It also raises the height of the SubM P...

As long as we're here, the little metal dome sits on the two shiny rectangles inside thecorcular cavity of the switch. Because it's domed it suts above the center circular contact. When you press the top it deforms the dome to touch the center contact, and clicks while it deforms. That's the tactile...

Notice the leftmost switch in your photo has all large black 'spots', and the others are missing the melted deformed tops. This means you already have some breakage in at least two more switches. So those would be good to glue while you're in there. It may not be all about the cat. Sideways pressure...

Beware the -missing?- shiny little metal dome that sits between the two parts in your photo. it's conductive, and if it bridges other parts of modules in your case later, it means more problems. Check that it's not rattling around anywhere. Good news is if you find it you can probably repair this sw...

@Pelsea typo on 10K? Did you mean 100K?
Which ubiquitous Euro modules are using 10K inputs?

Richard deHove wrote: ↑

Sat Mar 28, 2020 6:37 pm

Not sure whether it's because patching is more active or ergonomics push me that way.

Be sure to find your answer to this before committing to the new setup.

If by filter mod you mean changing R2,7,12 and 17, you can just put another four 4k7's on the VCF PCB solder side. 4k7's paralleled being 2k35 it's fast and easy. Don't even need to de-solder the VCF from the main board. edit: While you've got it open, be sure to clean the sockets for and pins of Q1...

Thing I hate with the fury of a thousand suns: the fact that the filter board is attached to the synthesizer board by means of big chunky standoff wires soldered directly in, which is going to make it hell to remove and to replace. God damn it, ARP... Those 'wires' are actually Mill-Max .040 dia pi...

There is a simplified version of that circuit in the CMOS Cookbook chapter 5 mentioned before. Lancaster says his version is only good for low speed, such as a manual actuation. Since tardishead still hasn't let us know his intent for the circuit this may matter. If a typical hex inverter is used yo...

I always recommend talking to the maker about this type of situation. Cre8Audio seem like cool folks and it's better for them to give you an answer than for me to speculate whether the damge to the midi portion of your PCB affected the power part negatively. Reach out to them and let us know what th...