Search found 2454 matches

by KSS
Fri Aug 07, 2020 1:57 am
Forum: Modular Synth General Discussion
Topic: Mixer module question. Two Inputs, One pot. Choices?
Replies: 14
Views: 213

Re: Mixer module question. Two Inputs, One pot. Choices?

Good catch, Dave Peck! Old-timers disease got me.

Thank you for the correction.
by KSS
Thu Aug 06, 2020 12:01 pm
Forum: Eurorack Modules
Topic: Behringer System 55
Replies: 548
Views: 35793

Re: Behringer System 55

:agree: But it's much less different when compared to 921's than with 901's. The difference being the individual expos in the 921's which don't exist in the 901's, and is the reason for a 901A in the first place. The 921A is kind of a 'poser' module. Carrying that ABBB across to the 921 era is more ...
by KSS
Wed Aug 05, 2020 11:31 am
Forum: Music Tech DIY
Topic: What we do and why we do it?
Replies: 17
Views: 453

Re: What we do and why we do it?

@mome rath
What did you expect? You trying to get there first, in the dark and all slathered in sauerkraut.

"Slip sliding away.. The nearer your destination the more you're slip-sliding away." ~PSimon
by KSS
Wed Aug 05, 2020 11:27 am
Forum: Music Tech DIY
Topic: Moog Memorymoog sucessfully cloned
Replies: 86
Views: 2869

Re: Moog Memorymoog sucessfully cloned

ultravox wrote:
Tue Aug 04, 2020 6:38 pm
Sounds really lush, not harsh or brittle - nice work!

Count me in for one kit or whatever you decide to do once it's finished.
I'm looking forward to the promised source files too. That's a generosity that only adds to this epic initial thread.
Thank you Luismarka!
by KSS
Wed Aug 05, 2020 11:23 am
Forum: Eurorack Modules
Topic: Behringer System 55
Replies: 548
Views: 35793

Re: Behringer System 55

Well of course he would say that. I have no dog in this race, but I was hoping the video was going to be a side-by-side comparison for the rest of us to see what and where any differences lie. Besides, can you trust someone whose KBD so badly needs bushings. ;) CLACK, CLACK, CLACK is part and parcel...
by KSS
Wed Aug 05, 2020 11:06 am
Forum: Music Tech DIY
Topic: Platform for DIY polysynths
Replies: 27
Views: 627

Re: Platform for DIY polysynths

@mrand Five may not be a good choice. Increments of four mean you have a proto or test or repair module built-in to the process. Also aligns with typical digital, which is 2^n Can also say from experience that fitting new modules -AKA voice cards here- into fixed formats can be pretty limiting in it...
by KSS
Wed Aug 05, 2020 4:43 am
Forum: Music Tech DIY
Topic: CEM3340 hard sync / reset phase
Replies: 12
Views: 697

Re: CEM3340 hard sync / reset phase

The Schmitt cleans up the pulse and makes it very fast rising and falling edges and consistent timing. Both are important in a VCO core reset or sync.
by KSS
Wed Aug 05, 2020 4:37 am
Forum: Music Tech DIY
Topic: CEM3340 hard sync / reset phase
Replies: 12
Views: 697

Re: CEM3340 hard sync / reset phase

No, that 317's an earlier Dennis Colin Design.

The PMO uses the SSM2030 VCO chip.
----------------
edit: Yes, the 338 is the right one.
by KSS
Wed Aug 05, 2020 4:23 am
Forum: Music Tech DIY
Topic: Noob needs help w/mounting hardware for busboard
Replies: 11
Views: 117

Re: Noob needs help w/mounting hardware for busboard

I used to drill 3mm (preferred) or 1/8" holes into wood and use a 6-32 M/F Hex standoff threaded directly into the wood. The 4-40 or 6-32 machine screw threads on top then mounted the PCBs. These were used in a high vibration environment and never had a failure. If the wood is soft. soak it with thi...
by KSS
Wed Aug 05, 2020 4:12 am
Forum: Music Tech DIY
Topic: Noob needs help w/mounting hardware for busboard
Replies: 11
Views: 117

Re: Noob needs help w/mounting hardware for busboard

I've repaired far too many things -not all synthesizer related- where the adhesive of this type standoff has failed to do its job. Would not recommend. Especially not with an unfinished wood surface. Roundhead wood or panhead sheet metal screws and nylon-plastic plain standoffs are much more secure ...
by KSS
Wed Aug 05, 2020 4:01 am
Forum: Music Tech DIY
Topic: Oberheim SEM 100% clone (interest check)
Replies: 43
Views: 1031

Re: Oberheim SEM 100% clone (interest check)

What do you think, guys? I think you have only 49 posts . Interest check is therefore premature according to forum rules. I think it's easy to copy PCB layouts . Just about anyone can do that. Your work does appear well done. I think I'd like to know more about your background and intent before say...
by KSS
Tue Aug 04, 2020 9:56 pm
Forum: Modular Synth General Discussion
Topic: Converting audio to gates?
Replies: 40
Views: 835

Re: Converting audio to gates?

Both Schmidt and schmidt can be found in print. Schmitt is, as I said earlier, more popular, but Schmidt has been in use for many years. A quick google will confirm that. From the first page of hits... I can find a LOT of misinformation in print. I don't confuse that with using it as justification ...
by KSS
Tue Aug 04, 2020 4:39 pm
Forum: General Gear
Topic: Roland's Analog Mafia and the Mid-0 series 303, 606, 808, 909
Replies: 7
Views: 393

Roland's Analog Mafia and the Mid-0 series 303, 606, 808, 909

Read some Roland history by the ones who made it. 303, 606, 808 and more https://vector808.jimdofree.com/home/episodes-of-the-mid-o-series/ And they're back! Doing free software emulations See Matrixsynth for photos and more https://www.matrixsynth.com/2020/08/rc-808-re-create-808-official-website.h...
by KSS
Tue Aug 04, 2020 3:31 pm
Forum: Music Tech DIY
Topic: What we do and why we do it?
Replies: 17
Views: 453

Re: What we do and why we do it?

Distributed architecture resonates with what I'm talking about. As before said, this is not meant to be about digital v analog in a holistic sense.

More where to use what, when and why.

Appreciate the replies! Looking forward to more views on the subject.
by KSS
Tue Aug 04, 2020 10:23 am
Forum: Music Tech DIY
Topic: CEM3340 hard sync / reset phase
Replies: 12
Views: 697

Re: CEM3340 hard sync / reset phase

I may be off base here, haven't looked at the circuit closely. But another thing I had planned to mention was that the nand you got rid of is there -and is a Schmitt- for good reason.
by KSS
Tue Aug 04, 2020 10:20 am
Forum: Music Tech DIY
Topic: CEM3340 hard sync / reset phase
Replies: 12
Views: 697

Re: CEM3340 hard sync / reset phase

I had a smile when i saw the Spectrum circuit. Built one of those a long time ago. Was going to reply to your earlier post saying that a FET is used to Reset osc cores all the time by shorting the integrating cap, but you could just use it as a switch to a variable or preset voltage instead. That's ...
by KSS
Tue Aug 04, 2020 9:59 am
Forum: Modular Synth General Discussion
Topic: Utility filters...
Replies: 12
Views: 282

Re: Utility filters...

:tu:
Moog had simple non-VC HP and LP filters for good reason.
by KSS
Tue Aug 04, 2020 1:54 am
Forum: Music Tech DIY
Topic: Simple Schematic Question
Replies: 19
Views: 235

Re: Simple Schematic Question

Here's how I'd do it. Going all the way to the component, so as not to miss anything. But normally in one color, usually a green highlighter, hence the name you'll find online about this, "greenlining". Only one color needed because you're doing a real-time comparison between the PCB and schematic. ...
by KSS
Tue Aug 04, 2020 1:33 am
Forum: Music Tech DIY
Topic: What we do and why we do it?
Replies: 17
Views: 453

Re: What we do and why we do it?

Hmm... Which world (analog/digital, hardware/software) are we more comfortable designing/ building in, and how motivated are we to leave our comfort zone? Also: Is the digi-Lego solution really indistinguishable from the old school, or is it just "close enough?" If the latter, how close are we talk...
by KSS
Tue Aug 04, 2020 1:17 am
Forum: Music Tech DIY
Topic: What we do and why we do it?
Replies: 17
Views: 453

Re: What we do and why we do it?

@EYG, Can you find your 'New Paragraph' key, please?

As for the massive power difference, that's why I specifically mentioned *not* going full digital, but hybrid. Where this difference in power use is minimally experienced.
by KSS
Tue Aug 04, 2020 12:52 am
Forum: Music Tech DIY
Topic: Non-Conductive Precision Screwdriver(s)
Replies: 9
Views: 210

Re: Non-Conductive Precision Screwdriver(s)

I actually want some less-precision ones, for the nylon M3 screws I use to mount my modules - a plastic driver would help me to not mar the modules if I slip! (Which I do. Lots. Slip, that is - I’ve been pretty lucky about not scratching stuff.) Slip a piece -or two concentric pieces- of vinyl tubi...
by KSS
Tue Aug 04, 2020 12:36 am
Forum: Music Tech DIY
Topic: Simple Schematic Question
Replies: 19
Views: 235

Re: Simple Schematic Question

So presumably, I can still do my folded over vertical feedback resistor in this case with no ill effect then? Yes but put the short end of the resistor on the input pin. That would be an optimal solution but it will work the other way too. I want to caution that although emmaker is technically corr...
by KSS
Tue Aug 04, 2020 12:10 am
Forum: Music Tech DIY
Topic: Simple Schematic Question
Replies: 19
Views: 235

Re: Simple Schematic Question

Think in terms of NETs . Instead of drawing circles around things, follow a line with your marker until it runs into *something*. That's one of the NET nodes. Then continue doing this until you have colored all the schematic lines available between these end nodes. That's one of your circuit's NETs...

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