Publison Infernal Machine + LinnDrum / Jam 2

Here's the second (more conventional) part of the previous jam, featuring a fully restored Linndrum for a client along with a Publison Infernal Machine reissue, hand-built by my friend Valentin :) You can watch the first jam here:    • Publison Infernal Machine + LinnDrum / Jam 1   In addition to copy/pasting the same description, I’ll also add a few details about the process! The Infernal Machine itself is in the racks. In this video you only see the remote, with a few occasional close-ups when I tweak it. The LinnDrum is raw ; I’m just using the left main output straight into the console (a BiAmp Model 42). From there I send the signal into DSP A (mono), pan it slightly to the left, then route that channel via a second aux into DSP B (stereo). DSPs are mixed back into the console. A hint of U-He SATIN, Pro-Q, and Pro-L on the master… and there you go :) LINNDRUM - This one came with a fun issue: the snare would trigger the side stick, and the toms would trigger the congas. Apart from various CMOS quirks of that kind, I rebuilt all sliders/faders (volume + pan), the trigger buttons and replaced the pots with custom clones made by my friend Manfred from VintageSynth&Co. I also swapped the audio caps for polypropylene ones and rebuilt the power supply. During the process, the CPU card failed so I had to debug the sequencer - turned out to be a bad address latch and a dead bus gate (no idea what caused that). All in all, a serious overhaul! INFERNAL MACHINE - A very special device. The IM90 was originally designed by French engineer Philippe Petitdemange between 1983 and 1984, with development continuing until the final DSP update in 1989. Publison devices are infamous for their opacity: components were often stripped of references, making repairs impossible. No schematics were ever published or even formally documented, which made the Infernal Machine both exceptionally rare and subject to extreme prices (I’ve seen one listed around 20k€!!!) Following Philippe’s assassination in 2019, much of the design knowledge risked being lost. Jonathan Prager was designated as the official Publison legacy/maintenance technician and undertook the task of redrawing schematics based on the original archives he bought to preserve these machines. Meanwhile, Valentin, a French expatriate living in Japan, independently carried out his own reverse-engineering and successfully built a true 1:1 clone. His version (named the Celestial Machine) fits the strictest definition of a clone: an exact replica running the original code, featuring a beautifully recreated remote controller and using NOS components throughout ; except for a new OLED display (co-designed with Bob Grieb of TaunTek). This special Publison-badged unit was sent to me for testing and demonstration to original Publison co-founder D. Dean - more info soon maybe :) By the way! If you’re curious, I wrote my master’s thesis on Publison, it was published in French (deal with it lmao) : https://www.ens-louis-lumiere.fr/wp-c... Reach out to Valentin:   / vintage_standards_synth   https://www.vintagestandardsjp.com/cat-a _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ My name is Valmont, I'm 24 from Paris! I compose/produce music, repair instruments and take sound on movie sets :) After a double bachelor in musicology and mechanics in Sorbonne, I ended up doing the Ecole Nationale Supérieure Louis-Lumière. I wrote my thesis on Publison and Early Digital, which ultimately tied together my long-standing fascination in vintage machines, servicing and technical demystification with my personal attraction to these instruments. I tend to hope for a unified low-level approach to music production guided by DIY values. This Youtube channel is a form of its realization! Join the gang :   / valmont_naudin   Listen to my stuff : https://iconism.io/frame/valmont