Search found 592 matches

by Cheradenine
Sat Feb 06, 2021 5:08 am
Forum: Music Tech DIY
Topic: Anybody have an extra STM32F103CB chip?
Replies: 13
Views: 347

Re: Anybody have an extra STM32F103CB chip?

Well I have two left, Mouser ref 511-STM32F103CBT6
And a bunch of leftover from my foray in DIY Mutable
Take a look at the list - maybe there's something else you'd want, to justify the shipping from France...
Mutable SMD stock.xls
(29 KiB) Downloaded 9 times
by Cheradenine
Tue Apr 23, 2019 8:24 am
Forum: Announcements - Please read!
Topic: Mike has passed away.
Replies: 917
Views: 117531

:sadbanana:
by Cheradenine
Fri Oct 19, 2018 5:37 pm
Forum: Music Tech DIY
Topic: CGS Hall Of Fame
Replies: 50
Views: 4613

Ok then, fronts and guts :nana: :banana: Quad slope https://i.imgur.com/aU5IJkA.png https://i.imgur.com/vKEgrSt.png Wave multiplier, SSG & digital noise https://i.imgur.com/r85Wquo.png https://i.imgur.com/5HPXDRZ.png Quad slope, Peak & trough https://i.imgur.com/QxuqMCR.png https://i.imgur.com/VQYoJ...
by Cheradenine
Wed Aug 29, 2018 12:52 pm
Forum: Eurorack Modules
Topic: SynthTech E370/E352 shipping status for next 2-3 weeks
Replies: 264
Views: 23539

paults,
Is there still a possibility to buy a DIY version ? I'd love one but I'm a banana guy :nana:
by Cheradenine
Sat May 05, 2018 11:35 am
Forum: Music Tech DIY
Topic: !!The Pseudo 0.5 258J Build/Mod Thread!!
Replies: 1706
Views: 179389

MPF102 in EU :
Musikding
Banzai
by Cheradenine
Sat Mar 03, 2018 2:35 pm
Forum: Music Tech DIY
Topic: The 2018 Show Us Your DIY Builds Thread
Replies: 840
Views: 78887

Here's the last Modcan A format modules I've built :

Oakley dual S-VCO :
Image

Image


Toppobrillo 281 fuction generator
Image

Image
by Cheradenine
Sun Jan 07, 2018 10:49 am
Forum: 5U Format Modules
Topic: Cynthia and Modcan-A
Replies: 26
Views: 3025

I also do custom Modcan A modules, with UV printed panels.
I'm just a very slow builder... :help:

Image
(J.Haible frequency shifter)
by Cheradenine
Tue Dec 26, 2017 12:20 pm
Forum: Eurorack Modules
Topic: CMS - ARP 2500 Multimode Filter!
Replies: 55
Views: 9399

The original 1047 is an "Unconditionally stable" filter, meaning no self-oscillation even at its max Q of 512 (the "54db peak at Fc") in the 16Hz-16kHz range. That was the main goal of Dennis P. Colins when designing the circuit. That's my bad. Maybe it's not the right terminology. With no signal p...
by Cheradenine
Fri Dec 22, 2017 3:09 pm
Forum: Eurorack Modules
Topic: CMS - ARP 2500 Multimode Filter!
Replies: 55
Views: 9399

The original 1047 is an "Unconditionally stable" filter, meaning no self-oscillation even at its max Q of 512 (the "54db peak at Fc") in the 16Hz-16kHz range. That was the main goal of Dennis P. Colins when designing the circuit. If the CMS filter is self-oscillating, it means CMS failed to make a "...
by Cheradenine
Tue Dec 12, 2017 1:16 pm
Forum: Buchla, EMS & Serge
Topic: Low Pass Gate advice
Replies: 6
Views: 977

The Cyndustries QLPG can be modified for rescaling the CV input.
It's just a matter of replacing 4 resistors (one per LPG)
Check this thread, and the nice pdf from Phil/megaohm
by Cheradenine
Thu Nov 23, 2017 2:43 pm
Forum: 5U Format Modules
Topic: For Sale/Trade Cross-Link (while Search engine is down)
Replies: 15
Views: 2285

This is a good idea, whether the search works or not.
There's zero visibillity for non-euro stuff in the euro dominated BST forum.

Anyway, here's the link to my current sales :

Yusynth MU DIY modules

Modcan A - Cyndustries - DIY modules
by Cheradenine
Tue Nov 21, 2017 12:33 pm
Forum: Music Tech DIY
Topic: Mini-Modules : Minimoog DIY clone on its way.
Replies: 1952
Views: 290481

:tu:
by Cheradenine
Tue Nov 21, 2017 12:12 pm
Forum: Music Tech DIY
Topic: Mini-Modules : Minimoog DIY clone on its way.
Replies: 1952
Views: 290481

the A440 circuit is not implemented in the MME
You're sure the envelope opening the VCA is working ?
by Cheradenine
Tue Nov 21, 2017 11:44 am
Forum: Music Tech DIY
Topic: Mini-Modules : Minimoog DIY clone on its way.
Replies: 1952
Views: 290481

How low is dramatically low ?
Main out is line level, not modular level
by Cheradenine
Sat Nov 18, 2017 12:56 pm
Forum: Music Tech DIY
Topic: Mini-Modules : Minimoog DIY clone on its way.
Replies: 1952
Views: 290481

You need to adjust the bending of the switch legs a little, for them to align with the holes.

edit : you found that yourself :mrgreen:
by Cheradenine
Sun Nov 12, 2017 5:43 am
Forum: Music Tech DIY
Topic: Mini-Modules : Minimoog DIY clone on its way.
Replies: 1952
Views: 290481

Look carefully there's a rectangle on the right of the circle
by Cheradenine
Wed Nov 01, 2017 4:39 pm
Forum: Music Tech DIY
Topic: DIY Trade Thread [ Parts, PCBs, Panels ]
Replies: 899
Views: 157137

DIY mutable stuff

I have a bunch of stuff from my DIY-Mutable adventure, check the list. They're leftover parts from Braids, Peaks, Clouds, Elements and Grids. I also have some PCBs left, but I redesigned them for banana use - thonkiconn won't fit ! But Kobiconn 161-1640-EX will ! I'm looking for 4164 SRAM Chips for ...
by Cheradenine
Fri Oct 27, 2017 8:26 am
Forum: Music Tech DIY
Topic: closed -Interest check/poll for further syncussion SY-1 sale
Replies: 286
Views: 23923

Why f**king everything has to be euro now :despair:
by Cheradenine
Sat Oct 07, 2017 8:26 am
Forum: Music Tech DIY
Topic: Mini-Modules : Minimoog DIY clone on its way.
Replies: 1952
Views: 290481

I have 28 MPS8097 left, bought 50 for matching purpose
But in these 28 it may be harder to find enough matched pair as I already gone through them.
by Cheradenine
Mon Sep 11, 2017 12:07 pm
Forum: Music Tech DIY
Topic: Capacitors Hunt - UFW1HR47MDD
Replies: 23
Views: 1097

Just go for the UKW1HR47MDD
It's exactly the same specs, and according to the nichicon datasheet it's even better for audio than the UFW Serie
by Cheradenine
Sun Sep 10, 2017 10:14 am
Forum: Music Tech DIY
Topic: ARP2500 - 1047 Filter Redraw and Questions
Replies: 15
Views: 1165

Do you have experience using the tl071 in the place of the 1439? I got about 10 at a $1 each, so I'd like to continue to use the prescribed opamp, but there's always room for experimentation, plus there's always room to leave pads open for compensation/etc. Frankly, I'd like to not be using LM301's...
by Cheradenine
Wed Sep 06, 2017 2:07 pm
Forum: Music Tech DIY
Topic: ARP2500 - 1047 Filter Redraw and Questions
Replies: 15
Views: 1165

Ok now that I'm back home, I can confirm the audio pots are 100k audio and the missing cap value is 0,1uF (designator C33 btw) You can replace the 1339 opamp with TL071 instead of MC1439, so you can remove the external compensation for these (R19/R21/C4 for A4, R31/R33/C7 for A5 and R43/R45/C10 for ...
by Cheradenine
Sun Sep 03, 2017 5:01 pm
Forum: Music Tech DIY
Topic: ARP2500 - 1047 Filter Redraw and Questions
Replies: 15
Views: 1165

The 1004 is slightly harder to clone and calibrate properly, because almost none of the SEL res and cap are explained in the service manual :ripbanana:
by Cheradenine
Sun Sep 03, 2017 3:58 pm
Forum: Music Tech DIY
Topic: ARP2500 - 1047 Filter Redraw and Questions
Replies: 15
Views: 1165

I've cloned the 1047 (and the 1004), did my own board layout - too bad photobucket killed all my pics link :deadbanana: Without the service manual it'll be hard to choose the SEL resistors as they're part of the complex calibration procedure. Some are just parallel to others resistors for fine tunin...
by Cheradenine
Sat Aug 26, 2017 6:50 am
Forum: Music Tech DIY
Topic: 1BIT Multitap Delay by FEEDBACK [UPDATE]
Replies: 223
Views: 25966

Also very curious about this one !
What's the minimum delay time obtainable ?
I like Karplus-Strong as much as dirty-long delay sounds :mrgreen:

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