Random Video: Chaotic Modular Techno by Leafcutter John

Here's another nice one, by Leafcutter John, who has been uploading a lot of interesting Eurorack videos lately...

Video: Chaotic modular techno

" Playing with a chaotic patch built around the doepfer 'chaos patch' found here http://www.doepfer.de/a100_man/a100_p..."

Uploaded by Leafcutter John

Quick Tip XII : A-149-1/2 Connection

Since i recently own an A-149-1/2 Quantized/Stored Random Voltages combination i thought it would be a good idea to spend a few blogposts on it.
Sadly something in my mixing-desk popped yesterday, so i can't make any demo's of it right now (or even listen to loud music...) I hope fixing it will not take too long... or cost too much :-(

This first post is very basic, but i have seen the question on how to connect these two modules pop up on forums several times.
This can also be found in the A-149-2 Manual (PDF), but i guess this post (and picture) will provide all the info you need.

The A-149-2 must be placed directly next to the A-149-1 module (I prefer it on the right side as it seems more logic to me)

A-149 connection - A-149-2 on top, A-149-1 below that
The inter-connecting ribbon is the right one,
the ones on the left should be connected to the busboard

The special connecting ribbon cable is equipped with 10 pin female connectors on both ends.
Join the two modules with the supplied 10-way ribbon cable.
Make sure that the ribbon cable is not twisted, and that the colour-coded section is oriented the same on both modules.

One of the female connectors is already connected in the factory to the pin header labelled "JP2 TO A-149-1 EXPANSION CONNECTOR" on the A-149-2 pc board.
The second female connector of this cable is used to establish the connection between A-149-2 and A-149-1.
This female connector is put on the pin header labelled "JP5 EXPANSION" on the main board of the module A-149-1.
For both modules the cable has to be the same polarity (i.e. red wire to bottom for both modules).

Pay attention not to damage any of the parts on the boards.

Doepfer Gifts - Full Disclosure

Doepfer mug-shot

Back in January i received an e-mail from Dieter Doepfer himself in reply to a few questions that i had in preparation for a new blogpost.

Doepfer customer service has always been good, and Dieter always tries to personally answer his emails the same day. 

He is always willing to help me out with my retro-product-questions.
Besides the answers to my questions, he also had another nice announcement.

" Hello Pierre,
that's really a nice collection of our history products. 

When I have the time I could scan all the old documents I still have.
I think this will help you to continue the excellent work.
As you agreed that we link to your page I'm willing to offer some compensation for your job.
Publishing these details will also help us because sometimes customers ask for something like that.
Let me know if you are interested e.g. in a free A-100 module or similar."

Thank you, Dieter

...and last week, my package finally arrived.

They sent me a beautiful black-and-white Doepfer mug and an A-149-1/2 Quantized/Stored Random Voltages combination,  great modules that were high on my wishlist.

Doepfer mug and A-149-1/2 combo

I am very thankful for these gifts, and i see it as a recognition for (over) three years of blogging about modular synthesizers here at PatchPierre.Net.

I also feel that i have to mention these gifts from Doepfer here, as some kind of disclosure.

I will (of course) write one or more blogposts about my new modules, and i will keep on bringing you all the Doepfer news in the future.

Not much will change by these gifts, but i will stay the Doepfer fanboi that i always have been...

Raul Pena's A-149 Random Controlled Voltages Tutorials

Raul Pena is back once again with some very interesting tutorials on the Doepfer A-149 RCV module.

Video 1: Doepfer A149-1 RCV Quantized Random Voltages

" Description and Demonstration of the Doepfer A149-1 RCV Quantized Random Voltages.Sound and Video by Raul Pena."

Video 2: Doepfer A 149 RCV Stored Random Voltages

" Part Two in the Doepfer A149-1 RCV Series.Exploration and Demonstration of the Stored Random Voltages section of the Doepfer A149-1 RCV. Sound and Description by Raul Pena."

Video 3: Doepfer A 149 RCV Modulation of Quantized and Stored Random Voltages

" Part three in the Doepfer A149-1 RCV series. Explanation and Demonstration of Modulation in the Quantized and Stored Random voltages sections."

As soon as more episode appear online i will add them to this blogpost
Don't forget to check out Raul's site at http://raulsworldofsynths.com/