Електронски Музикални Инструменти - Вокодер - Радио бр.9 1984 (А. Смирнов ,В.Калинин ,С. Мулаков)

 

Automatic Phase Box - Everyday Electronics by E.M. Lyndsell (E.E. 1977)

 

Mixer

 Finally i completed this diy mixer ,it's not as pretty as some other things i've done ,but i changed my mind too many times about too many things while building this ,so in the end i only waned to complete it and it's done . This is a Buchla 106 Mixer ,with 3 x  SIAM (Siemens based EQ) on 3 channels on one of the two groups of the 106 Mixer .There is mute on all channels and 4 groups of aux channels based on early Serge Mixer using 741 ,i expanded the 106 to 4 channels for group or 8 in total ,so that extra channel at group is actually two channel summer meant to be used as return for 2 aux groups , those 2 extra channels have Tape Saturator Colour MK1 which can be bypassed  with high pass switchable from 40hz to 60hz .The second group of the mixer has no equalizer . In addition there is 4 channel input joystick that works as a four channel panner ,or two x two channel panners ,it can be useful to browse thru the 4 aux groups ,the joystick has Colorupter Optical Disrupter Colour that can be bypassed .This build was not easy cause i reused lot of materials for the panels and the enclosure ,the enclosure is leftover from machines in an old textile factory ,the inputs and outputs are in the back of the enclosure and that part is fitted additionally but it turned out beautiful.

Bellow is a little preview ,pedals used : Zvex Fuzz Factory ,Tone God Christine ,Culture Jam Triton Delay ,Fred Briggs '64 Tones ,now too lazy to make more cables ..

Colorupter ,Joystick

 

Colorupter ,Joystick 

ZVEX FUZZ FACTORY

 

OD

'64 Vox Tone by Fred Briggs

 

noise

 

Siemens Equalizers

SIAM (Siemens Insprired Audio Module) 

fiction

 

Variations and Red Leaf

 

it's complicated

 

.

 

Synthesizer Secrets

 https://synthesizerunderconstruction.blogspot.com

I made a new Blog Page ,is this end of life for this one . Over the years i made more then few PCB layouts ,and many of them were built ,tested ,modified ,so it kind of itches to place them in one directory ,like a schematics vault ,or a modular synthesizer ,so i found a layout that is working good for this purpose ,this documentation is free to download along with gerber files . Music and pretty pictures are not hosted here but i hope the list of modules will grow as i need to revisit some of the earlier layouts i made . Most people will just go and buy the kit and this is if you think you might save a few bucks . Here's the link :

Synthesizers

 

this project is done.

DIY Modular Synthesizer Sessions - 2019-2021

 

Classic

 

voltage scrambler

 This is not an attempt to design a module ..still the ideal diode tutorial from Jim Patchel inspired me for this module ,i was gonna make a panel that featured few of the examples he gives in the tutorial ,and so i even draw this schematic combining 3 simple modules . As in the basic ideal circuit from Patchel's site this module has one input and one break cv input .At the outputs you get 2 different voltages derived from the input voltage and the break voltage input ,these are later fed into 2 voltage controlled glide modules originally designed by Serge ,as these fit very well as submodules cause of their simplicity ,and finally the slewed voltages coming out of the glide submodules are mixed with single cv processor also originally designed by Serge . I find it interesting cause the two upper and lower parts can be inverted with the processor . I am not sure if this would make sense in a modular ,as i have not built it yet ,however i have built a waveshaper based on the ideal diode circuit and that is working fine .

 

 

 

 

 

pcb layout for this module ,made to fit 2 x LCR Vactrols

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panel art