Wednesday, December 16, 2015

Moog Source VC-LFO , schematics and PCB Layout  in 300dpi



Korg MS20 VCF as in Electronics or Music Clone schematics available here , this is single VCF version , IC's are LM13700  , PCB layout is 300dpi 




Serge ' 73 VCF , suitable for eurorack format , PCB is tested and working with single cv input , so simply don't install the bottom IC and you got a working '73VCF as it was meant with single input , low freq option is added


 
Aries AR-314 VCF , schematics here  , PCB layout is still untested

Tuesday, December 8, 2015

Befaco VC Slew Limiter , schematics is here ,opamp is TL074,  PCB untested is 300dpi  (edit - this is a tested working layout , bit much slew on 15V PSU , potentiometers are 100K )



Sunday, December 6, 2015

Envelope Follower and preamp from the book Nouva Generation de Musicales Istrumentos electronikos , PCB layout is 300dpi not tested



Saturday, December 5, 2015

EM&M Harmony Generator redrawn layout , print is in 300dpi 









Dome Filter designed by Osamu Hoshuyama , i assume there can be a pot to get a 3rd phase , PNP layout is 300dpi not tested 


Fixed Filter Bank Based on design by Juan Bermudez's Nueva generación de instrumentos musicales electrónicos , i added 4 more bands following the capacitor table , high q settings on the resistors , individual outs , PCB is 160x100 mm 300dpi

Xfade Dual Crossfader based on Buchla circuit , PNP layout is in 300dpi  , more about the circuit here : http://electro-music.com/forum/topic-17019.html matched transistors are BCM847 (edit: this is a working circuit ,however you need to add 68K or similar at the audio inputs to fix the gain problem)













Roland System 700 Analog Switch, here is schematics  , without the manual push button ,only 3 inputs i needed for my synth, pcb is still untested the single op-amp is TL071  , it's 300dpi ready for PNP

Wednesday, December 2, 2015

Save File II : Serge VCO (Retro) , Serge R-Series Envelope ,Buchla 291 BPF , Yamaha GX VCF ,Xfade x 2 , Clock Divider , Experimental Hardware Neurons G.R. ,Dome Filter O.H. , EMS Ring Modulators , Monotron Drums ,Hip Bass Drum C.A. ,DC and Audio Mixer ,18 Band Fixed Filter Bank J.B. ,Noise Gate J.H. ,Roland Analog Switch



Sunday, November 22, 2015

R Series Serge - Envelope Generator ,before it cycles


Thursday, November 19, 2015

Monday, November 2, 2015





Buchla 192 Dual VCF / DC Mixer-Processor / CV Twister - Eurorack format 



Friday, August 14, 2015

Serge VCFQ and Waveshapers eurorack panel


Multi Phase Waveform Animator circuit from http://electronotes.netfirms.com/ #87, by Bernie Hutchins , original layout by Scott Bernardi ,i just draw over it , there was mistake in original layout with power lines as it's described here http://www.bernacomp.com/elec/og2/og2_waveanim.html , there are four jumpers on the print png instead , print image should be 300 dpi , you might need to rescale it 


















Wednesday, July 29, 2015

my 'save file' . loading with pcb's .


Tuesday, May 19, 2015

Synthesizer patch using Serge VCS , Serge Negative Slew , Analog Neuron , Jerk Chaos , MFOS VCO , NLC VCA , Polivoks VCF , Clock Divider , Buchla @08 Random ,NLC Difference Rectifier ,Morphlag , E4M Xmix


Monday, April 13, 2015

Friday, March 20, 2015

Sunday, March 1, 2015

synthesizers . re-new synthacks mini-modular
- MFOS VCO
- Moog Parametric Eq
- Polivoks VCF
- Serge Negative Slew
- Serge VCS
- Buchla Music Easel Random
- Yusynth Quadrature VC-LFO
- VCA
- CGS Grinder
- NLC Analog Neuron
- Clock Divider
- H. Bissel Morphlag
- E4M Xmix
- NLC Difference Rectifier
- NLC Single Jerk Chaos
- Yusynth Noise



Wednesday, January 7, 2015

redrawn layout for Electronotes 87 ,Waveform Modulator by Bernie Hutchins ,original layout by Scott Bernardi ,this one is tested and working   http://www.bernacomp.com/elec/og2/og2_waveanim.html ,