Psychoacoustic Enhancer article by Paul Williams HSR August 1985

 

 

VCO by Stephan Winter ,full pdf with double sided pcb layouts for vco ,vcf ,envelope ,lfo etc. :  http://www.uni-muenster.de/imperia/md/content/fachbereich_physik/technik_didaktik/entwicklung_bau_synthesizer.pdf

Mixer , headphone and tone controls from November issue of Onda Quadra ,designs by A. Lazzari ,Riccardo Monti

 

 

Onda Quadra - ADSR ,along with PCB prints and synthesizer girl

 

 

 

Sophisticated Synthesizer - series of articles on building a modular synth in Italian magazine Onda Quadra -  1978 ,articles by : Adriano Lazzari and Riccardo Monti ,here's are the  ADSR and LFO/Noise modules .

 

 

 

Excerpt from EDN papers tribute to Jim Williams

 

 

Graphic-Parametric equalizer ,article from Selezione di Tecniche Elettroniche May 1985

 

 

 

Pseudo Random modules ,one from electro-music's synthesizer : http://electro-music.com/emsynth/PseudoRandom.html ,the other belongs to Elektor's Formant modular ,next http://www.theremin.us/Circuit_Library/digitalnoisegen.html by Arthur Harrison

 

Low Pass active Filters ,part of the measuring set ,envelope delay distorion TS2669/GCM ,the manual is on the following link : http://www.liberatedmanuals.com/TM-11-6625-922-15.pdf

КОМПРЕССОР  НА  ПОЛЕВЫХ  ТРАНЗИСТОРАХ , or fet based compressor project ,complete with pcb layout's and suitable transistor equivalents  http://www.sugardas.lt/~igoramps/article60.html

Chaos generator circuit of another strange chaotic system  http://www.researchgate.net/publication/236651194_Analysis_nonlinear_control_and_chaos_generator_circuit_of_another_strange_chaotic_system/file/e0b49518ae8bfc82da.pdf

Rikitake chaotic dynamical system , more details on this circuit : http://scialert.net/fulltext/?doi=jas.2007.232.236

 

Staircase generator using diodes ,article by H.Oscar