As I mentioned earlier, I had two spare spaces in my 24 module Digisound cabinet, so I decided to build two more modules to go in them:
One faceplate came from Doug at http://www.synthparts.com
, the other from a guy in New Zealand who has various Digisound parts and a few incomplete modules which he apparently bought from the Digisound "factory" before it closed its doors.
However, although the faceplates are genuine, these aren't really Digisound modules - in fact they are Ken Stone CGS modules, a CGS35 Steiner-Parker Synthacon VCF
, and a CGS78 dual EG
Purists may shudder (are there any Digisound purists?), but I think these modules are in the spirit of Digisound being entirely DIY, and they fit the panel quite well (note cable ties to secure one end of the PCBs, a bit ghetto but remarkably secure), and the pot and jack functions fit quite well with the panel labelling.
I also built the little Schmitt trigger circuit suggested by Seb
in order to fix the gating problem which was a design fault with the Digisound Dual EG module. The veroboard is just superglued to the edge of the Digisound PCB, which means I can remove it later if necessary:
Finally, I replaced a few dodgy jacks, and all the fine-tune pots on all the oscillators (can you guess which pot is new?):
Next step is to re-assemble everything into the cabinet (the design of the cabinet makes bolting the modules in a real pain, and thus I need to think carefully about their order and placement), with a final check of the calibration of each module as it goes in, and then I'm finished! No doubt I'll want to replace some more corroded jacks and noisy pots in due course, but I want to use it a bit first before deciding what else to replace, if anything.
Final photos and some sound samples next, in due course. Oh, I must buy some more patch cables!