Post
by Kevin Lightner » Tue Mar 13, 2012 10:29 pm
How about this for a nutty idea?
A small variety of common (shared) PCBs that could be configured for various tasks by means of inserting pre-programmed PICs or ASIC chips.
Only the panels, controls and jacks would have to be different module to module.
For example, a board with a PIC (a digital CPU chip) could be configured as an ADSR, LFO or other CV generating or modifying module.
Various front panels with different feature sets could be made, but the same board could drive any of them.
This way, one could have 2, 4 or 8 LFOs, dual or quad envs, quad lags and so forth.
Only the panels and main chip would change, keeping costs down.
Another common board could support an ASIC (analog chip) that could be configured as a VCO, VCF, VCA, ring mod, phasor, etc.
Again, only different panels and the main chip would need be changed.
This way, one could get the integration that the A6 had by using ASICs and a CPU, but shared board technology that cuts down on assembly and parts costs and welcomes future designs or modules built upon the same platforms, whether analog or digital.
I don't see any reason why an env or LFO couldn't be realized digitally this way.
PICs often have A/Ds and D/As and high clock rates.
ASICs are now much cheaper to produce than when the Andromeda was designed.
They can duplicate almost any analog circuit with few, if any external components.
A module could be analog to the core.
Moog could even make both digital and analog VCOs this way and the digital ones, like the various envs and LFOs, could remember their settings and be programmable.
As for programmable patching, it might be possible to have an internal analog patching buss and modules that send and receive digital identifier signals when first patched in.
So patch cords would make a patch as normal, but those pathways would actually be hooked up and recalled via a wide analog buss using analog switch ICs.
Those modules intended to go in existing modulars could have jumpers hooking the front panel jacks directly to the module's inputs and outputs, thus bypassing the shared analog buss located elsewhere in the Moog cabinet.
So modules could be programmable when installed in a Moog cabinet, but work as normal if installed in, say, a Synth.com cabinet.
I know, crazy and complex idea.
Sort of a cross between a standard modular and a programmable Arp 2500 or Buchla 200e.
Better to be king for a night than schmuck for a lifetime. - R. Pupkin