jen sx1000 modded

about two months ago i bought this analog synth. a poor man's moog produced in italy at the end of 70ies. now i'm using it with some behringer stomp boxes (flanger, chorus, tube overdrive). i've searched infos and schematics to add a sub-oscillator to get a more typical moog sound. with this mod i can have a -1 octave square added to the original oscillator. if you want to do that with your jen sx1000 read this (i haven't found the author). i also added a power jack instead of the built-in power cable and re-coloured the knob caps.

specifications:
sub-osc (square -1 octave)
power jack

audios:
jensx1000_1.mp3 (730 kb) - nice lead with some effects
jensx1000_2.mp3 (633 kb) - sub-osc misc sounds
jensx1000_3.mp3 (518 kb) - sub-osc misc sounds

photos:

noizer II - square wave synth

an evolution of noizer I: a 555 based oscillator noise synth. inspired by the q.r.ghazala's lumivox II and this tone generator schematic.

specifications:
2 vco (square wave)
2 pitch potentiometer
2 pitch photo resistor
pseudo lfo (vco 2) + variant (diod)
fxs (drive, milk)
volume

audios:
noizer2_1.mp3 (939 kb) - misc sounds

photos:

alienmod - noizer I module

a module for noizer I (another 555 ic)

specifications:
lfo
alien beam effect
birds-rats effect

audios:
alienmod_1.mp3 (1.8 mb) - misc sounds

photos:

noizer I - square wave synth

a 555 based oscillator noise synth. inspired by the q.r.ghazala's lumivox II and this tone generator schematic.

specifications:
1 vco (square wave)
pitch potentiometer
pitch photo resistor
whawha effect
caos effect
pseudo volume
reset

audios:
noizer1_1.mp3 (372 kb) - simple sound
noizer1_2.mp3 (378 kb) - photo resistor in action
noizer1_3.mp3 (533 kb) - whawha in action
noizer1_4.mp3 (387 kb) - caos effect

photos: