Follow-up to the video
posted here. The Fonitronik Cascade 4hp Flexible Mixing & Attenuverting Toolkit is now available at
Thonk.
Some details via the online manual
here:
"Back in 2007 I sold DIY PCBs for an attenuverting mixer designed for eurorack. This project eventually turned into the 1st fonitronik product that came into the stores early in 2010. The module provided 4 channels and a final summing stage with a simple RC network to remove DC offset, when desired. Alas, with 12HP the module itself was rather large. Too large for a lot of people today. So I decided to redesign the module and I am now proud to be able to present the successor of the fonitronik mh01 as a DIY project via THONK, the CASCADE triple attenuverting mixer/processor in 4HP only. It does MIX, INVERT, ATTENUATE, ADD GAIN The module provides 3 channels of ‘attenu-gain-vertion’, each with it’s own bicolor LED. The input of each channel is normalled to a voltage source. There are two modes of mixing the three channels , which could be set by a jumper: CASCADE: output of channel #1 is mixed into channel #2 (as long as no cord is patched into output 1), output of channel #2 is mixed into channel #3 (as long as no cord is patched into output 2).
PARALLEL: both the outputs of channel #1 & #2 are mixed into channel #3 (as long as no cords are patched into the outputs).
Again, inputs are normalled to an internal voltage source. As soon as you patch the inputs they are removed from that source. The outputs are normalled to the internal mixing (depending on mode jumper), however, as soon as you patch the outputs they are removed from the internal mixing. This makes this module very versatile. Just guess: when using channel one for attenuverting a signal (Fig. a) you could still use channels 2 & 3 to attenuvert and offset another signal"
