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by KSS
Thu Nov 26, 2020 2:35 am
Forum: Eurorack Modules
Topic: Which Joystick brings you joy?
Replies: 71
Views: 1519

Re: Which Joystick brings you joy?

Earlier in the thread the corners unavailable to a circular travel JS were brought up. Is there any value to have a clipping function to turn the circle of this kind of stick into the square available with the type Rex Coil 7 posted <--in the dotcom panel? One could move the stick in a circle and th...
by KSS
Thu Nov 26, 2020 2:17 am
Forum: Eurorack Modules
Topic: Which Joystick brings you joy?
Replies: 71
Views: 1519

Re: Which Joystick brings you joy?

I couldn't really understand the reason for such a large joystick until I watched the videos. I didn't watch this video but it sure looks like it isn't going to work very well -if at all- with those modules on either side of it actually patched. The hand position seem in the vids preview photo woul...
by KSS
Wed Nov 25, 2020 10:45 pm
Forum: Synthesis Techniques
Topic: Who is all geeked out on analog logic?
Replies: 4
Views: 199

Re: Who is all geeked out on analog logic?

Here! Love my min/max/sum/diff stuff. I don't have too much technical knowledge about it but generally like the idea of anything that can derive additional signals from simple existing ones . Add comparators to your arsenal. They are excellent for doing what you wrote. And Mixers. VC Mixers too<--A...
by KSS
Wed Nov 25, 2020 10:11 pm
Forum: Eurorack Modules
Topic: Modulation Steps in a Sequence
Replies: 7
Views: 116

Re: Modulation Steps in a Sequence

:agree: @apcuddling I started doing the same thing as soon as the screen photo emerged and I realized this wasn't a thread about doing that, but rather a thread aobut the Westlicht module. And a search for others like it. ------------------- Rather than an LFO, use something like Maths or a VC EG. U...
by KSS
Wed Nov 25, 2020 5:40 pm
Forum: Music Tech DIY
Topic: CEM3320 reissued vcf -Obxa
Replies: 5
Views: 177

Re: CEM3320 reissued vcf -Obxa

@werock
Did Curtis re-issue the 3320?
I thought they only did the 3340G?
by KSS
Wed Nov 25, 2020 5:25 pm
Forum: Modular Synth General Discussion
Topic: Oscillator Sync. How Complex Do You Like It?
Replies: 22
Views: 533

Re: Oscillator Sync. How Complex Do You Like It?

My first thought was ARP 2500 panel homage/reference actually. More than an homage or reference. It *is* the 1004 VCO and T,P mixer circuits. In the original size. Fully backward compatible*. With some additions. Like the sync which is the topic of this thread. Since the original 1004-P,R,T do not ...
by KSS
Wed Nov 25, 2020 5:11 pm
Forum: Music Tech DIY
Topic: Vintage Arp Odyssey III noise leaks to the output
Replies: 20
Views: 144

Re: Vintage Arp Odyssey III noise leaks to the output

Asked before, what are the values of the electrolytics which replaced the tants? I'm not sure I'm understanding this: I desolder the filter board and operated the synth only with the board C and A connected on the psu. The noise continued to come in and out the audio output. Filter board *is* Bd C-I...
by KSS
Wed Nov 25, 2020 4:54 pm
Forum: Music Tech DIY
Topic: Vintage Arp Odyssey III noise leaks to the output
Replies: 20
Views: 144

Re: Vintage Arp Odyssey III noise leaks to the output

After doing several test and tries the problem persists. As an update I checked all the sliders for clean and smooth operation. They all work fine and sort to the ground when are on the lowest setting. I noticed that the tantalum bead capacitors are all replaced by the previous owner with electroly...
by KSS
Wed Nov 25, 2020 4:43 pm
Forum: Music Tech DIY
Topic: Potientometer Replacement for MFB Microzweg
Replies: 10
Views: 99

Re: Potientometer Replacement for MFB Microzweg

That's unfortunate. But as you say, it might be influenced by the pandemic. Did we ever get an answer about the two pins? Are they a switch? Or a tap? Or? The first step to fixing this will be to *know* what we're trying to come up with. ---- Edit: You might try contacting one of their major distrib...
by KSS
Tue Nov 24, 2020 8:58 pm
Forum: Music Tech DIY
Topic: Vintage Arp Odyssey III noise leaks to the output
Replies: 20
Views: 144

Re: Vintage Arp Odyssey III noise leaks to the output

On Bd C there's one between the upper 3rd and 4th slider from either direction. Another in the same 'column' but just a little lower than the slider bodies Also one below the filter module. And another between the 2 and 3rd lower sliders <--from the right. This is the ADSR timing cap. The upper one ...
by KSS
Tue Nov 24, 2020 8:19 pm
Forum: Music Tech DIY
Topic: Vintage Arp Odyssey III noise leaks to the output
Replies: 20
Views: 144

Re: Vintage Arp Odyssey III noise leaks to the output

Ok, progress! When you say 'the' board, there are three -four if you count the connectork and five is you count the PSU. We've got to be talking about the same thing or we'll not get very far. Bd C has the filter module, Bd A is narrow and B has the oscs and is in the middle. Bd B has tants at C5 an...
by KSS
Tue Nov 24, 2020 7:05 pm
Forum: Music Tech DIY
Topic: Potientometer Replacement for MFB Microzweg
Replies: 10
Views: 99

Re: Potientometer Replacement for MFB Microzweg

Yes, and it's not in their catalog. A custom part.

The closest is a dual with threaded bushing and d shaft. That's the RK0952G-1
But yours is more like a dual version of their single R0903N. Even then your bushing is different.

I'd contact MFB.
by KSS
Tue Nov 24, 2020 6:05 pm
Forum: Music Tech DIY
Topic: Vintage Arp Odyssey III noise leaks to the output
Replies: 20
Views: 144

Re: Vintage Arp Odyssey III noise leaks to the output

I'd want to see the rails on the scope while the problem was present. I'd set it up to wait for that to happen. You won't hurt anything replacing the tants with new. But if it's then 'fixed', will you *know* it was the tants? That kind of synth tech gets gear returned after 'fixing' it. Edit: I'm no...
by KSS
Tue Nov 24, 2020 5:56 pm
Forum: Music Tech DIY
Topic: 100k input resistance... isn't
Replies: 58
Views: 1313

Re: 100k input resistance... isn't

:agree:
by KSS
Tue Nov 24, 2020 5:38 pm
Forum: Buchla, EMS & Serge
Topic: buchla 205
Replies: 26
Views: 4146

Re: buchla 205

Reading this thread last night inspired this result for my new format. Please ignore the cartoonish aspects of the presentation. The colored Rogan knobs will look much better. A mber, B urgundy, C arrot, and D arker. There were hardly any colors starting with D that didn't have Darker or Deeper as t...
by KSS
Tue Nov 24, 2020 5:16 pm
Forum: Music Tech DIY
Topic: 100k input resistance... isn't
Replies: 58
Views: 1313

Re: 100k input resistance... isn't

@The Peasant I guess you will prefer mskala's answer then. He gave more details on the way to the same conclusion in reply that I did. Is a circuit working in hundreds or thousands of modules out in the real world a good answer or not? You're trying to pin down something that shouldn't be pinned dow...
by KSS
Tue Nov 24, 2020 5:05 pm
Forum: Music Tech DIY
Topic: CEM3320 reissued vcf -Obxa
Replies: 5
Views: 177

Re: CEM3320 reissued vcf -Obxa

Have you swapped the new chip into other voices to see if there's more going on than just the chip in the one voice you replaced? Does it affect all th eother voices the same way as the present one? Note that you're also swapping good chips into this -potentially- still broken voice. So don't swap w...
by KSS
Tue Nov 24, 2020 5:00 pm
Forum: Music Tech DIY
Topic: Vintage Arp Odyssey III noise leaks to the output
Replies: 20
Views: 144

Re: Vintage Arp Odyssey III noise leaks to the output

Welcome to MuffWiggler, kasiofz! I won't argue with Don T's #1. The tants used in these years were not very good and can lead to many problems. But I don't know that I'd do it first. Or recommend it blind. Before doing even more basic checks like measuring the power supply voltages. You're new here,...
by KSS
Tue Nov 24, 2020 4:02 pm
Forum: Music Tech DIY
Topic: 100k input resistance... isn't
Replies: 58
Views: 1313

Re: 100k input resistance... isn't

Perhaps this is partly a generational thing - people of my age (mid-30s and younger) have grown up surrounded by effortless access to perfect tuning, borderline nonexistent noise floors, flat frequency responses. We're not seeking these things out, because they're ubiquitous and banal. The best 'ok...
by KSS
Tue Nov 24, 2020 3:54 pm
Forum: Music Tech DIY
Topic: 100k input resistance... isn't
Replies: 58
Views: 1313

Re: 100k input resistance... isn't

For example, does the following diagram from Dr. Sketch-n-Etch from the thread below represent the final word for outputs or is there a better way? They represent *his* final answer as applied and currently used across hundreds to thousands of *real* IJ and S-n-E modules in real working synths out ...
by KSS
Tue Nov 24, 2020 3:33 pm
Forum: Music Tech DIY
Topic: 100k input resistance... isn't
Replies: 58
Views: 1313

Re: 100k input resistance... isn't

Interesting discussion (really), but I got to say I'm a little surprised at some of the response. There's no denying that Neil in his original post has a point. If you have a 1v/OCT output with a 1K output impedance and you plug it into an input with an unknown impedance, it's going to go out of tu...
by KSS
Mon Nov 23, 2020 11:30 pm
Forum: Music Tech DIY
Topic: 100k input resistance... isn't
Replies: 58
Views: 1313

Re: 100k input resistance... isn't

SlightlyNasty wrote:
Mon Nov 23, 2020 9:45 pm
surely one of the most foundational aspects of engineering is being able to correctly identify the important design metrics for the final application, and focus time and resources on those rather than one's intellectual hobby horses.
:tu:
by KSS
Mon Nov 23, 2020 4:31 am
Forum: General Gear
Topic: Behringer Swing
Replies: 46
Views: 3867

Re: Behringer Beystep!

Axel Hartmann is Designbox

Edit: Found it: https://www.synthtopia.com/content/2017 ... th-design/
by KSS
Mon Nov 23, 2020 4:25 am
Forum: Music Tech DIY
Topic: [PROJECT] MUWZ - Triadex Muse based sequencer
Replies: 7
Views: 296

Re: [ORDER] MUWZ - Triadex Muse based sequencer

:tu: Thank you. That's what my read of your MUWZ manual implied.

Definitely easier different in software. ;)

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