This blog was created to document the progress of my latest project - building a clone of the classic Roland TR-909 drum synthesiser. I've purchased PCBs for the sound-generating circuits from Trevor Page (check out http://introspectiv.org and http://uk.groups.yahoo.com/group/introspectiv/ - great job Trevor!).
My synth will not be a direct copy of Trevor's design. I am adding a digital step sequencer as well as a graphical LCD display to make it a stand-alone unit.
The unit has been in the making for the last 12 months or so, and I don't suspect it will be finished any time soon. I will be posting some historical photos/details as well as new info as I progress - on a rather non-regular basis.
I am learning about digital design as I go along here, so expect bugs and errors, mess-ups and failures - and hopefully some success :-D