Thanks for the info. The sound is definitely different, though. Presumably down to the approach and components used?

@@AlexBallMusic The Korg35 is particularly distinctive because of the way the control part works - it's not "just" controlled by the current into the bases of the two transistors used to set the cutoff because the voltage going into the filter changes, and that changes the current between base and emitter. So if you stick a sawtooth in, good and loud, the sawtooth sweeps the cutoff at audio rate! If you stick a squarewave in and look on a fairly accurate audio spectrum analyser you can see the resonance peaks move apart as you make the square louder. The diode ring filter kind of balances the control and input voltage between the two "legs" of the ring, and a similar thing is used in the Steiner Synthacon filter (which loads of us have in Arturia synths now) - just like in a ladder filter as one side goes up the other goes down and they cancel out. The MS50 diode ring filter is a very similar layout to the "traveller" filters as you say, but also the Yamaha CS80 and friends. Finally the OTA based ones are stable no matter what input you stick in, because the inputs of the opamps are always balanced and the gain is set by the current into the bottom of the input pair - the cutoff is totally uncoupled from the input signal. I should do a video on them some time. Edit: I forgot to mention, the Korg Monotron filter is basically a Korg 35 filter but super affordable. They're easy to build, too!

​@@erroneousbosh Brilliant - thank you.

@@erroneousbosh i wonder what kind of filter is in the monotribe and volca keys. would gamble 35 and traveller.

@@klinkske The service manual for the Volca Bass and Volca Keys are out there, and it's a diode bridge S-K filter kind of like the "Traveller" filter. The diode biasing comes off opamps rather than transistors making it more like the MS50 filter than anything.

Thank you!

Matron.

Thanks!

Thanks Ned!

My pleasure! I can think of worse things to do. 😀

Very true. Well said 👍

I'm a salesman living in 1978. I use a worm hole to access KZfaq.

Someone on GS was like, "AB needs to make music instead of gear demos" and I was thinking, "what if you viewed them as music videos instead of as gear demos?" Then the complaint would be "these music videos aren't very comprehensive video manuals!" "Well, what if you viewed them as guides to what makes these synths special?" but really, expectations tend to make all experiences worse, not better. Also, 1978 KZfaq kicks 2022 KZfaq's ass. Even tho there wasn't YT in 78, there's just no room for doubt (and no CGI clickbait, except for on George Lucas' channel)

Indeed!

Korg will do that to you. 🙂

Always wanted one, wasn't disappointed. 😀

​@@AlexBallMusic 😃 enjoy, man!! It's certainly wound up in the right hands!

Cheers. Korg does that to a guy. :)

Catchy but threatening - sounds like covid. And yes, the future is coming and it was 45 years ago. What a sound.

@@AlexBallMusic I call it " Future Noir " but that's just me. LOL 😆

…and good grief, the sound of this thing!

Absolutely, like recording two different guitars and panning.

Matron.

I was thinking that I need to take it up to Sam as he's not only Mr MS-10/20, but I saw he got the accompanying SQ-10 sequencer recently. Would be fun to put that all together with a phone exchange and furbie organ. 😃

@@AlexBallMusic I‘d love to see that! But don‘t let him touch the circuits or might throw flames at the end or something!😁

The Superdrums are so bad, they're somehow good. Scientists are still researching why.

Alex has some of the best sythersizor music around to be honest.

Thank you kindly!

Thanks for letting my have it! Amazing thing.

Ah shucks, bad timing! If it's any consolation, I've missed MS-50s by small amounts half a dozen times over the past five years. Hard to get hold of.

Just applauding the synths.

The joys of KZfaq. Niches within niches. I only watch TV for live sport basically.

Or a combined stereo 20/50 in a box with an extended patch panel. The MS-70.

Yeah, my Odyssey went to make a space for this. I know the problem well.

That's the new miniKORG. Use it all the time, it's such a fun synth. 😀

@@AlexBallMusic how is it compared to the OG 700S?

@@klinkske I've only played the original 700 next to it and I'd say that the vintage one has less bass and top, but is more forward in the mids. The FS has wallop in the bottom and more sizzle. But when doing bandpass stuff, they both sound awesome and very Korg. The ring mod on the new one is awesome and the spring reverb and extra stuff is very handy indeed.

Had to be done!

Cheers!

Played one of those once. Fun little synth.

Thank you!

Should have thanked you for the filter info btw, apologies but I forgot to say.

@@AlexBallMusic no worries! Information is and should be free! :)

Didn't know that one, thanks for the tip off!

@@AlexBallMusic If you can listen to it (until the end...) and tell us what you think about this stereo madness... That would be cool as well. :)

Thanks Thomas. It's a joy to play around with this stuff. And yes...the 50 completes the 20. For starters it has PWM that the 20 inexplicably doesn't. 😃

Cheers!

Thanks!

Howdy! Thanks.

Thank you!

most likely Trent reznor played with it at some point !

Thanks Daniel.

The British Empire has produced the finest sleaze on the planet. Matron. 🤣

Quite the naughty box of tricks.

Yeah, my guess was that it was a unique selling point to persuade people to get the expander to partner their 10/20.

70s Korgs are so smutty, yeah.

Cheers

Ah, the classic trio. Might grab am SQ-10 if I ever see one for a reasonable price. Have the SQ-1 in the meantime.

Cheers. Yeah, they definitely have a sound. A fully modular family member really opens some doors in that world too, so I'm loving it.

Thank you very much!

That's exactly what I love about the MC-4. Each step is an event with two CV values, a step time and a gate time. The step can be any value you want, as can the gate and there is no rule as to where you punch in "measure end". Tight as hell too. Awesome machine.

Cheers Maurice, always striving for the talk/music balance.

Glad to bring back your past. 😀

It is a mad thing, yeah.

@@AlexBallMusic Also thank you very much for providing us with one rare synth treasure after another. You are the Supercar Blondie of the synth world 😍

Cheers Alphonso. You gotta have the clap!

Cheers! Yep, SQ-1 to sequence and also for 2 channels of MIDI to CV, which is very handy indeed. I have the 50 hooked up to my computer basically. And yes...it's mine! (Evil laugh)

@@AlexBallMusic Ex-cell-ent....

@@AlexBallMusic You made very nice music on that thing!

Cheers Ben. You'd have fun with this chap.

Cheers. Yeah, quite rare.

And now I have both! Sexy times.

@@AlexBallMusic And MS-10 and SQ-10 to go for full set. ;-)

@@DestroyER82 I had the opportunity and after weighing it up, I decided not to open that worm hole. 01, 02, 20, 50 and SQ-1 are enough. (famous last words)

@@AlexBallMusic It... is... Inevitable ;-)

I'll stick them on Bandcamp next week. 🙂

@@AlexBallMusic thank you your work should be recognized it's not your average sound it's a style all your own

Quite a rude sound, yeah.

MS Jedi Power - haha. Yeah, that's the MS-50.