VERBOS ELECTRONICS

[Triglav]

It's a Buchla 259 style triangle core made with an opamp and a comparator (TL082 and LM311).
I can send you some (badly laid out) schematics of the CO core if you're interested.

[StrangeAttraction]

It's a Buchla 259 style triangle core made with an opamp and a comparator (TL082 and LM311).
I can send you some (badly laid out) schematics of the CO core if you're interested.

I'd love that but I'm probably too novice to really understand it. But yes please. If you know more about the general designs of triangle and saw core oscillators (like an overview...the other ones I have are AFG, and I had Atlantis in the past), that'd be great to hear. I'm just looking for an overview. I'm familiar with the CEM sound (Pro One, SH-101) but let's just say, modular VCOs often seem more ..."bespoke" :-)

[Triglav]

Sure, here's the great Aaron Lanterman analysing the 259 core:

He's uploading his 2021 course on his own channel if you're interested in following from the basics (I suspect he'll do an updated version on oscillator cores soon): https://www.youtube.com/user/abovenyquist

[abovenyquist]

Yup, an Buchla 259 lecture will be coming in a week or two.

[skryex]

Hello,
i just got a second hand complex osc and just read that they were actually two versions of that module, with and without vactrols.
How can I see/hear which version I have ?

[Triglav]

If you have these guys on the back, you have the vactrol version.

vco.jpg (164.03 KiB) Viewed 284 times

[skryex]

If you have these guys on the back, you have the vactrol version.

vco.jpg

Thank you

[zerodivide]

Hello,
i just got a second hand complex osc and just read that they were actually two versions of that module, with and without vactrols.
How can I see/hear which version I have ?

If you dig some pages back in this thread a guy posted a really great comparison video of the old and newer complex oscillator

[skryex]

sorry for the double post

[skryex]

If you dig some pages back in this thread a guy posted a really great comparison video of the old and newer complex oscillator

Didn't find it in the first few pages, but found some very nice resources. Can't begin to imagine what goldmine lies in the depths of this thread...

[Tumulishroomaroom]

If you dig some pages back in this thread a guy posted a really great comparison video of the old and newer complex oscillator

Didn't find it in the first few pages, but found some very nice resources. Can't begin to imagine what goldmine lies in the depths of this thread...

here you go :

[BrokenBo]

looking at these complete verbos systems at schneidersladen. they sure are expensive. oh boy! the cases seem to be super expensive as well.

[skryex]

Thanks, look like I've gotten myself a fat vactrol CO. Both sound great tbh, no regrets

[Portabella]

It's a Buchla 259 style triangle core made with an opamp and a comparator (TL082 and LM311).
I can send you some (badly laid out) schematics of the CO core if you're interested.

Does the same apply to thee Furthrrrr Generator or is it completely different design?
At least it's also based on the 259

[Triglav]

The basic design is the same, I'm not sure about the parts.