#899

As far as I can gather from the Ken Stone documentation it is only a matter of wiring it differently.

2 Likes
#900

Easy, just wire the pots the other way around, i.e. swap the wires to the outer lugs. This is one advantage of not having PCBs for the panel controls – that kind of mod is trivial.

I think at least one version of the Random Source PCBs had options to do it either way.

1 Like
#901

Hm. Would one have to worry about expo-log-linear responses when wiring? I genuinely don’t know; if it’s an easy fix, then I have six slopes I wouldn’t mind retrofitting to bring them in line with my expectations.

Edit: I should revisit the VV6’s DUSGs and confirm their pots’ responses before I go too far down the rabbit-hole.

#902

I guess your CV inputs work in the “normal” way i.e. higher CV = faster, right? If so then it is just a case of rewiring the rate pots and there will be no effect on the rest of the circuit, I am pretty sure.

#903

Yep, I’m just referring to the pots’ response.

#904

I’ve just started staring hard at the wiring diagram and description here: http://serge.synth.net/documents/kit/dusg.html
and as far as I can tell, this has the CW lug of each pot wired to the 0V (U on the wiring diagram), and the description indicates that clockwise = fast. That surprised me because I thought Serge’s original setup was the other way around.

Ken’s schematic


has the rise and fall pots wired the other way around, so CW = slow.

Anyway, yes, easy change if you want to do it.

1 Like
#905

The pots are all linear. I built some DUSGs from Elby a while back.

#906

Nice one, thanks! It’d be pretty cool not having to recalibrate my memory mid-patch.

1 Like
#907

hello! i was wondering if anyone could offer some pros and cons of the variable slope vs variable Q filters :thinking:

a friend reccomended variable Q for it’s expanded functionality due to the trigger input but i really want to use the filter for basslines and swells, so i thought the variable slope would suit my needs more?

thanks for any advice

#908

for those wanting to hear some sounds of charlies loudestwarning panels, I just was lucky enough to snag @emenel old panel (thank you friend) and got it in the mail today. could help but make a quick vid. heres a raw video pf the 258 VCO variable out sine wave through the TWS with lots of gnarly distortion. not the greatest recording (iphone) but it sounds great to me :slight_smile:

https://www.instagram.com/p/CH15Fa9BHtE/?utm_source=ig_web_copy_link

I also have a NTO so would be happy to make some comparison vids if anyone really wanted one, but to be honest, I can;t really hear the difference between one sine wave and another…

8 Likes
#909

Sounds great indeed! Thanks for the share :black_heart:

1 Like
#910

I might be wrong but the VCFS doesn’t self-oscillate. VCFQ offers a quadrature sine with its four outputs, which are also useful when used in low-frequency mode to process CV, generate LFOs, feedback routing, etc. VCFS has the ability to crossfade between two inputs, which the VCFQ cannot do. The former is also less prone to overdrive and its ability to vary its cutoff curve from 12 to 6 dB is useful. The overall timbre of each filter is much different for perhaps obvious reasons, but the expanded functionality of VCFQ makes it a stronger contender as a multi-utility filter.

4 Likes
#911

I have the dual slopes in 4u, and it’s cool to have both and be able to compare. I say the core sound is similar for basic filtering but that’s where the similarities end. The VCFS does not feed back, but having the ability to dial the exact slope is very nice for basic filtering. The VCFQ is great as a basic filter too but for all of its extended functionality it makes it indispensable. I’ve pretty much been using it mostly for triggering, I love that sound, but I need to dig into the cv processing and lfo mode more.

#912

I was taught that the VCFS CAN oscillate with feedback. The trick is to invert the output. The main and bass sound in this patch is the VCFS!

11 Likes
#913

Oh rad, didn’t know that!
Learning new stuff everyday with Serge.

1 Like
#914

That’s the beauty of it. The never ending journey is what it’s all about :blush:

1 Like
#915

how do you mean? like run it through a cv processor or something the like?

1 Like
#916

Yeah, I think :joy:

It’s been awhile and I no longer have my La Bestia, but from the looks of this patch I’m taking one of the outputs and running it in to the Mixer with the switch flipped to negative. I ASSUME from there it goes back to the input?

#917

word.

you gotta get a serge panel back in your life :slight_smile: that Arp 2600 track you posted on YT is very nice, but imho, the raw sounds you spit out with your serge patches cant be beat :muscle: :metal:

1 Like
#918

I appreciate the words!

Charlie has my 50% deposit. I’m hoping it’s only a couple weeks now :crossed_fingers:

1 Like