[sdiy] Winding up Latest Project...

[R. Drake]

Jim,

Congratulations, looking forward to hearing more about (and from) your
latest.

In at least one of the older photos, it looks like you've got a couple dozen
circuit boards laid out... does this mean that these will be for sale (as
pcbs, kits, or completed synths)?

allbest
lbd


on 11/9/03 11:18 PM, James Patchell at patchell at cox.net wrote:

> 
> I am getting pretty excited...I am winding up my latest synth
> project, and it looks like I am going to meet all of my goals.  The biggest
> goal was to do a synth that only takes about 40 hours to build (this does
> not include any NRE such as drawing schematics, laying out PC boards,
> fixing mistakes on the PC boards, but only the time needed every time I
> build one)...
> 
> I am still in the process of editing the photos I have taken of
> it.  It is probably the cleanest modular I have ever built...there are only
> 9 wires in the whole thing (wires that I had to solder between two points
> that is).  Wiring has always been a major time consumer for me.
> 
> I still have to finish writing the code for the MIDI->CV
> converter.  I thought I might get that done today, but, only have it half
> done.  At least I got to the point where the card is parsing the midi
> data.  I just need to write the code that runs the S/H unit for the
> DAC.  The Midi->CV converter uses an Atmel AT90S8515....soon to be changed
> to an ATMEGA8515...:-), the code is being written with the Image Craft
> IccAVR compiler.
> 
> Here is the complement of modules:
> 3 VCOs
> 3 Multimode (SV) Filters
> 2 4 in 1 out mixers
> 2 ADSRs
> 2 LFOs (Triangle/Square)
> 1 Divider (2-3-4)
> 1 32 bit psuedo random noise generator
> 3 Diode wave shapers (2 break points each)
> 3 CV processors (Gain/Offset)
> 2 VCAs
> 1 Glide
> 1 Balanced Modulator
> 1 Midi->CV converter (8 gates/8 CVs) with Start/Stop, Reset and
> Midi Clock outputs
> 
> Also, on some of the modules that I knew would be going multiple
> places, I have multiple outputs (usually 3).  It seemed like a good way to
> do "multiples" and it saves one jack position (there are two 4 jack
> multiples on the panel as well).
> 
> -Jim
> ***************************************************
> I'm a man
> But I can change
> If I have to
> I guess.
> 
> Man's Prayer
> Red Green
> 
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> http://www.oldcrows.net/~patchell
> 
> http://members.cox.net/patchell
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