Keep - mini modular analog synth

Name: Keep - mini modular analog synth
SKU: 34512
Price: 64.00 USD
Availability: InStock

Keep is a self sequencing mini modular synth based on the XR2206 frequency generator.

Designed by Poetaster's Tonetoys in Germany

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Keep is a self sequencing mini modular synth based on the XR2206 frequency generator.

What? The keep though mini contains a self-sequencer, and two voices. The first voice is a simple pulse, from a Hex Schmitt-Trigger, fed through a vactrol (diy) which can be modulated. The second voi…

What?

The keep though mini contains a self-sequencer, and two voices. The first voice is a simple pulse, from a Hex Schmitt-Trigger, fed through a vactrol (diy) which can be modulated. The second voice is the result of the two FM inputs of an XR2206 which can be switched (quickly, too!) chained, amplitude modulated and tuned between sine and triangle output. So, two voices the second of which can quickly switch character!

The sequencer is the primary pulse wave fed into a 4040 binary ripple counter. And mixed, or tapped at each output. 4 of the higher frequency outputs are mixed via two pots. Which you can add more inputs to. Or tap. Using a simple linear pot means that you can create patterns consisting of multiple 4040 outputs overlapping.

In short a 'nearly' digital cousin to the kastle.

Sound samples, videos and images: tonetoys site

Why?

When bastl instruments released the Kastle synth as a kit, I had a bunch of fun with that. But, I wanted to add something. Without using a lot of space. I also liked the idea of stepped output, but thought, well, that could be more interesting, and so, keep was born. The castle's keep, so to speak.

Special?

I've never seen a binary ripple counter abused like this till keep. Or since. :) The main thing that makes it special is it's size and the ability to use it with other small devices that use positive only pin headers, for instance, the kastle series from bastl and korg's micro modular. And of course, my Rampart digital synth.