[sdiy] The start of my modular

[Colin Raffel]

Thanks Harry, that makes sense.  Do you mean the HCC15-3-A on this  
page? http://www.flw.com/olpow2.htm

-Colin

On Dec 12, 2005, at 11:45 PM, harrybissell wrote:

> BUY the PowerOne dual supply... it can be strapped to be either
> +/-12V or +/-15V with no problems.
>
> (I don't recommend making your own power supply, its just not a  
> profitable
> use of diy time. The parts will probably cost as much as the finished
> product)
>
> Use +/-12 to debug. Then later (after class) you can boost to +/-15  
> and
> change
> the few, if any... values that have to be recalculated.  Its really  
> not that
> hard to
> do. In most cases its easier in the long run to make all the modules
> compatible
> than you add extra regulators
>
> H^) harry
>
> Colin Raffel wrote:
>
>> Hello everyone,
>>
>> I'm new to this list and the world of Synth DIY, although I have been
>> doing other audio DIY stuff (mostly pedals) for a couple of years.
>> This January, at my college (Oberlin), I am undertaking the project
>> of building a modular from the ground up-specifically building, not
>> designing the circuits, because designing a whole modular and
>> building it in a month I imagine is near impossible for one person.
>> But for 5-6 hours a day this January I plan on building a synth from
>> designs from Ray Wilson's site, http://www.musicfromouterspace.com .
>> I wanted to see if you guys thought that I had chosen a decent
>> selection to get a modular started (and hopefully expand upon
>> later).  I am planning on including:
>> 1) VC LFO/O (.1hz to 20khz) http://musicfromouterspace.com/
>> analogsynth/VCO200503REV01/VCO200503REV01.html
>> 2) VCO (10hz to 20khz) http://musicfromouterspace.com/analogsynth/
>> vco.html
>> 3) VCLFO http://musicfromouterspace.com/analogsynth/coolnewlfo.html
>> 4) +/- 12v Power Suply http://musicfromouterspace.com/analogsynth/
>> powersupply.html
>> 5) Dual VCA http://musicfromouterspace.com/analogsynth/ 
>> newdualvca.html
>> 6) VC State Variable Filter http://musicfromouterspace.com/
>> analogsynth/statevariablefilter.html
>> 7) Sample Hold/White Noise generator http://musicfromouterspace.com/
>> analogsynth/sandh.html
>> 8) ADSR http://musicfromouterspace.com/analogsynth/ 
>> norgate_adsr_001.html
>> 9) Simple Ring Mod http://musicfromouterspace.com/analogsynth/
>> RingModulator/RingModulator.html
>> Then, not from Ray's site, I am hoping to build from Ken Stone's site
>> 10) Stompbox adapter http://www.cgs.synth.net/modules/cgs46_sba.html
>> and http://www.cgs.synth.net/modules/cgs60_sba.html
>>
>> Do you think this is a good assortment?  Do you know of any other
>> designs/replacements you would choose? I have searched around a bit,
>> and it seemed like Ray had the most solid selection of simple modules
>> with detailed descriptions and PC board layouts around without it
>> just being a kit.  Do you think I should make the +/- 12v power
>> supply or should I build a +/-15v one that would (possibly) be more
>> compatible with future modules, then separately try to build a +/-
>> 12v step down for all of the modules?  Is there a general consensus
>> about whether or not Ray's modules will work with +/- 15v or should I
>> forget about that possibility?
>>
>> Thanks everyone for your help, I look forward to a wonderful January
>> of soldering, assembling, tweaking and (ehhh) debugging!  I will do
>> my best to contribute to discussions when I can and update you all
>> when it's done.
>>
>> -Colin
>
>