[sdiy] The start of my modular

Colin Raffel colin at experimentalistsanonymous.com
Tue Dec 13 16:51:54 CET 2005


Yeah, the VCA circuit contains two VCAs just on principle...  I think  
I will get rid of the simple ring mod, as I can get pseudo ring mod  
sounds from the VCA (hopefully) and build the second ADSR there.  And  
buy a power supply... I think that would work out well:

 > 1) VC LFO/O (.1hz to 20khz)
 > 2) VCO (10hz to 20khz)
 > 3) VCLFO
 > 4) Dual VCA
 > 5) VC State Variable Filter
 > 6) Sample Hold/White Noise generator
 > 7) 2 ADSR
 > 8) Stompbox adapter

Good call on the size of the power supply... I will try to find the  
smaller one

-Colin

On Dec 13, 2005, at 2:50 AM, Rykhaard D.A.M.I.A.N. wrote:

> On 12/13/05, Colin Raffel <colin at experimentalistsanonymous.com> wrote:
> Do you guys think there is a module in the list that would be
> rightfully sacrificed in return for another ADSR?
>
> Well ..... taking a good 2nd look at the list, as was shrunken by  
> the 1st replier:
>
> > 1) VC LFO/O (.1hz to 20khz)
> > 2) VCO (10hz to 20khz)
> > 3) VCLFO
> > 4) +/- 12v Power Suply
> > 5) Dual VCA
> > 6) VC State Variable Filter
> > 7) Sample Hold/White Noise generator
> > 8) ADSR
> > 9) Simple Ring Mod
> > 10) Stompbox adapter
>
> You've mentioned a Dual VCA.  I'm presuming the circuit that you're  
> working from IS that way already.  From the list above, to give you  
> an ADSR for your State Variable, and another for A, VCA, I would  
> sacrifice a VCA.
>
> I'd keep the VCLFO/O, VCO and VCLFO, as this gives you 2 VCOs and  
> an LFO, or a VCO and 2 LFOs.  Very handy combination, potentially.   
> (Depending on tuning accuracy of the VCLFO/Oscillator.)
> You have to have a power supply, VCA and Filter, essentially ....
> S&H adn White Noise are both very, very useful.
> Ring Mod is nice for some effects, but not essential in the beginning.
> Stomp Box, as you were building them before - I'm presuming it  
> wanting to be kept.
>
> Overall - there's not much room for doing any changes, for a  
> starter machine, if that's the # of modules that you're restricting  
> yourself to. :(
>
> In order of starting my new machine in July, I built:
>
> 1 x Power Supply (Power One - bought new - my personal SEVERE,  
> preference, as opposed to used / unpredictable or questionable,  
> self-building, as my first ones were. :O ;) )
> 2 x LFOs
> 1 x VCO / 4 x Summing Inverters with offsets (used as Mixers as  
> well) / 1 x 5 Level Pulse Width Modulator
> 3 x ADSRs
> 2 x SSM2044 4 pole LPFs / 2 x SSM2164 VCAs
>
> It's been wonderful to play with, thus far. :) :)  Multi-tracking,  
> I recorded a 'tune' with bassline, 3 note chord, 'bass drum' (Haha)  
> and (cough cough) 'snare drum'. :O :-D  LOL  It still sounds fun  
> though, with all of the sounds working through the modulated 5  
> Level PWM. :)  Nice and thick, for a single VCO. :)
>
> My next modules are:
>
> 2 x LF398 S&Hs / White Noise / Adjustable Attack & Decay Slew  
> Generator
> 1 x 4 Step sequencer with dual 12 step rotary switches for pitch  
> per step (in the middle of designing, and building, from the ground  
> up).
>
>
> This may count as my first true contribution to the list, but I did
> some searching for that power supply, and I came up with it for only
> $10 on eBay...  ($90 list price)
> It is the +/- 12/15v 3.4/3A model.  There are 26 of them so plenty to
> go around, but they are being sold as is... at $10 you can't
> disagree.  Should I pull the trigger?
>
> -Colin
>
> If it were $10 including shipping, I might.  Shipping may double  
> the cost though.  With the quesitonableness of it ...... :-/
>
> -- 
> Take care,
> Warmth and Peace,
> Ryk
>
> http://deathlehem.bravehost.com/damian.html - D.A.M.I.A.N.;s  
> webpage - Dec 0805 update




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