#818

That paper is an awesome find!

#819

check also this one:
Waveshaping with Norton amplifiers: modeling the Serge triple waveshaper

and maybe interested in this one:
Virtual Analog Buchla 259 Wavefolder

4 Likes
#820

Not sure if this would help, my Understanding of what your suggesting is vague, but Ornament and Crime has a Logistic Map mode in Quantermain. You might be able to use this to experiment with your ideas.

#821

Can anyone help me with wiring recommendations for my DIY Elby/CGS build? Reading the docs, there’s some conflicting info regarding wire gauge, size/number of strands, and insulation diameter (see p. 6), and I’m at a bit of a loss. Ex. I can’t find any 20g wire with a diameter less than 1.5mm, so I’m wondering if that’s for the wire itself or including the insulation? I could email Laurie but I thought I’d check here first to see if anyone had tips.
I want to finish my boat so bad! Any help would be greatly appreciated, thank you! :slight_smile:

1 Like
#822

I built a BOG recently and used 24AWG (https://www.amazon.com/gp/product/B01LH1G2IE/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1) for all of the panel wiring. I haven’t had any issues. I highly recommend a pair of automatic wire strippers. This build would have ended me if I didn’t have them :slight_smile:

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#823

Thank you so much for the quick reply! I’ll get some on order now, and can hopefully get this thing done and squawking!

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#824

I used 26 awg on a 73-75 panel and it was pretty good, recommended by Dmitry of COA if I remember correctly. 24 should be pretty good too. I would think 20 is too thick, personally.

I’d try to get some of the newer silicone encased, stranded wire if you can. Much easier to work with and easier to close the panel. That link @TanSaturn posted looks good.

2 Likes
#825

Screen Shot 2020-10-29 at 9.20.32 PM
Screen Shot 2020-10-29 at 9.20.32 PM823×375 38.9 KB

this one from Slater (1998) yields good results, too

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#826

someone in the 73-75 FB group was asking for Homebuilt demos: as it’s quite hard to find samples of it just on its own, I thought I’d contribute a few clips to add to what’s currently online. I don’t post on FB, but if anyone wants to share this there, please feel free. these are all from unattended patches, recorded straight to disk with no other equipment. (I put this together just randomly clicking through a bunch of files so I’m sorry it’s a bit messy…)

8 Likes
#827

ooooooof.gif in 20 characters

7 Likes
#828

These sound great, reminds me that I really need to spend more time with my Homebuilt system. No other equipment used, just the Homebuilt system? I’d be curious about some of the patches you’ve been exploring on it.

#830

thanks! yeah, it’s all just the Homebuilt on it’s own, just some EQ in the mixer to differentiate between the three output channels a little.

I’m afraid I haven’t been making any patch notes and have already forgotten how most of this was made exactly, but I was trying to make it sound less synth-y (after a long time of concentrating just on melodic sequences with really bright, hard, filtered synth sounds, which it also does really well, but it gets boring), so most of it is weird feedback loops, heavy use of the built-in reverb, trying to mess up and muddy the sound a bit. reverb out into waveshapers, I’m sure there’s a lot of that (all the noisy, crackling stuff). as it doesn’t have a noise source or s/h, I’ve been spending a lot of time trying to find alternative solutions, there are all sorts of weird workarounds you can come up with (the reverb tank is definitely a good source of non-linearity…)

2 Likes
#831

You’ve done a really beautiful job! And reverb pre-waveshapers is really brilliant – I’ll have to try that out. Thanks for sharing some of your process notes!

1 Like
#832

thank you – have fun! also taking control voltages from the reverb out can introduce some useful instability when needed, i use it at least as much for this kind of stuff as for actual reverb…

3 Likes
#833

Very nice. I’ve been using the reverb at the end of the patch, so using it in feedback loops should open things up a bit. I’ve never gotten crackles like that out of my system. I very much identify with your effort to get it away from the standard synth sounds. Sold off my Voice and Control to raise funds for some Ciat Lonbarde stuff, but kept the Homebuilt since it still feels like there’s territory to explore (and it was a lot of work to build!).

I’m continually finding new ideas within it, here are 2 recent ones:

  • Oscillator > comparator > triggering envelopes/slews for subharmonics and chords
  • Window out from each envelope into dual processor, out to oscillator for primitive sequencing (the 73-75 patch of the day video)

I’d like to experiment further with the peak/trough section, as well as inputting contact mics or radio using the preamp. I think with the comparator this should get interesting.

2 Likes
#834

yeah, those are great techniques – there’s really a surprising amount of possibilities for melodic sequencing and even chords (if you have patience to tune everything by hand, that is), and of course it’s much more interesting because you come up with things you would never think of playing on keys. I did a lot of that last year but I probably merely scratched the surface of what could be done…

what I need to look further into is logic, and especially the comparator, I still haven’t got my head around those super interesting looking tricks further up in the thread (the memory element etc.). one funny non-intended use for the peak/trough btw is to put audio through it and split the results to different outputs, it’s not dramatic but you can get some subtle stereo effects with it. the preamp I haven’t even touched yet – I can imagine you could build one hell of a customized effects unit out of this thing…!

2 Likes
#835

Hey all,
Just started my Serge journey after coming from
eurorack, and after a brief foray into Buchla, I’m really excited to dig into Serge. I’ve currently got 2 R*S 4u panels and have 3 more arriving in the next few days. So that gives me this setup: Carnivore, Dual Filters, DUSG XL, Wave Mult/ Res Eq and Donks (because I really love the 208 and it’s gonna have to go on the chopping block to fund this stuff) I don’t have a dedicated vco yet, and I’m wondering if I’ll find it necessary? Also, I don’t really have any cv processing, I can currently route it to my remaining euro stuff, but I’d like to eventually keep it all on banana. I’m wondering if anyone has built the CGS81 module for cv processing? Is there anything else out there I should look at for that sort of thing?

#836

The dual processor is a pretty handy design, I use it a lot in my 73-75 homebuilt. Oddly, Random Source doesn’t seem to offer that or a cv processor in their 4x4 lineup? Seems like they’re slowly updating things though. I would probably start with exploring the SSG and VCFQ for CV processing and go from there.

Regarding the oscillator, you can get pretty far using one of your filters or the DUSG for that purpose.

#837

FYI I am pretty sure the Carnivore’s slopes is calibrated (or can be) for pretty accurate 1v/oct tracking as an oscillator. I did buy a dedicated CGS oscillator (compact oscillator) because I figured the tracking and temp drifting would be more easily mitigated, but I don’t know for sure.
From the Carnivore build manual:

Using the trimpots on the main pcb the 1V/Oct tracking can be adjusted. However, be aware that by design the tracking of this module will not reach the range covered by dedicated oscillators.

RE: the CGS81, it looks like a very simple PCB build. I think you’ll need to get a faceplate that fits your R*S setup, or house it in its own box with power. Maybe even build a couple and make a CV mixer box? How do you feel about DIY?

#838

Hi everyone, I was wondering if anyone can recommend eurorack modules that can pull off the smooth stepped generator’s functions? Thanks for any tips! One day I’ll be able to afford the real deal, not for the foreseeable future though

1 Like