It is mostly a digisound modular, with some other modules added. It came from various sources, and most of the modules was in dire need of service, even missing lots of CEM ICs, and other parts broken as well.
The interesting part is that it is a mixture of original digisound front panels, and some DIY front panels with a curious format (not standard at all), and with texts in Norwegian ("Ny-norsk" for the Norwegians out there). Clearly homemade, as the drilling of the wholes for the jacks are not all lined up.
Cabinet and some of the original digisound modules I won in a Vemia auction from Mark Glinsky. The cabinet has seen some refurbishing, and all the original power wires and connectors have been swapped out. Power supply is updated, and I am now using Oakley dizzy power distribution board, but still original digisound connectors on the original modules.
Here is a list of the modules, from top left:
- 80-3 LFO, modified with a high/low switch (that should really be "low"/"super-low")
- 80-2 VCO
- 80-5 Processor
- 80-7 VCF (state variable filter, not the version with SSM IC but CEM-IC)
- 80-16 D.R.F. (Dual reasonant filter)
- 80-18 Dual envelope (but with a 80-8 front panel)
- 80-18 Dual envelope
- 80-4 Voltage controlled mixer
The narrow middle section, from left:
- PAiA 8785 Linear digital to analog converter (inputs)
- a dual multiple
- output jack converter, with on/off switch at the bottom of the cabinet
The bottom section, from left:
- 80-2 VCO (original digisound PCB behind the panel)
- unknown VCF, labelled "ARTS 85" on the PCB. It is a state variable filter, using a quad op-amp as the filter core, and (strangely enough) a CEM VCA IC as the controlling element. There was nothing to find on the web for this, so I had to reverse-engineer this to make it work
- PAiA 8781 QuASH (Quad Addressable Sample & Hold) outputs
- Thomas Henry "Snare+" module. It is an old version with noise, oscillator, simple envelope and modulation, based on the SN76477 IC. This one has text on the front panel, but the PCB is DIY
- Thomas Henry "Snare+" module. No text on the front panel (and different type of switches), but the PCB is original
- Tau VCO - see info here: https://www.muffwiggler.com/forum/viewt ... p?t=149568
- 80-18 dual envelope (original digisound PCB behind the panel)
- 80-9 Dual VCA (original digisound PCB behind the panel)
- 80-9 Dual VCA (original digisound PCB behind the panel)
Original digisound 80-1 power supply at the bottom (upgraded).
https://soundcloud.com/terjewinther/dig ... dular-test
