Midibox TWINsid is a light midibox sid v2 on three pcb wiht only two sid chip for stereo sound and a dedicated control surface for the clasic parameter
The main board pcb integrated :
SR board :
CTRL board :
On clasic pcb 100x160mm
Main board.pdf : http://midibox.org/forums/applications/core/interface/file/attachment.php?id=9281
SR board.pdf :http://midibox.org/forums/applications/core/interface/file/attachment.php?id=9282
CTRL board.pdf
A :http://midibox.org/forums/applications/core/interface/file/attachment.php?id=9287
B :http://midibox.org/forums/applications/core/interface/file/attachment.php?id=9288
HEX file :http://midibox.org/forums/applications/core/interface/file/attachment.php?id=9286
TWINsid V1.1 on youtube
V1.1 http://www.youtube.com/watch?v=c0opsniKrfY&feature=related