[sdiy] Dual power supply solution? - Kits vs 2600

[tomg]

:) What he said.....

I'm pretty serious on the SMD converter.. I'm thinking I could
do a 2-pair version with your choice of  pairs for $3-4 bucks.
That's worth doing and useful too. I was going to build entire
modules with these and I still might try it but this would be a
good first step.

Regards
Tom


> Tom,
>
> Calling the use of VREF circuits "anal-retentive" does beg the definition
of
> that characteristic in context to synth devices.  You may be right.
>
> I know that VREFs are an important part of my personal protection a
> long-standing intolerance for sources of drift, noise, and instability.
> This intolerance is so severe that it may very well meet your definition.
>
> Lot's of equipment, perhaps the majority of equipment, does not implement
> VREFs from which crucial sources such as expo current ref/frequency tuning
> pots/comparator thresholds are derived.  Much of this equipment is highly
> regarded.  If you don't implement them you are in great company.
>
>
> Secondarily, your SMT adapter boards peeked my interest, how seriously are
> you considering making these available?
>
> regards,
> p
>
> -----Original Message-----
> From: owner-synth-diy at dropmix.xs4all.nl
> [mailto:owner-synth-diy at dropmix.xs4all.nl]On Behalf Of tomg
> Sent: Tuesday, June 14, 2005 4:09 PM
> To: Harry Bissell Jr; synth-diy at dropmix.xs4all.nl
> Subject: Re: [sdiy] Dual power supply solution? - Kits vs 2600
>
>
> Just in case someone might actually believe all
> that anal retentive paranoia..That there is something
> wrong with the way Arp designed the 2600 or
> the way I designed the 3500 series.
>
> Here's a sample of the Widcat SBM. It has 3 VCO4s
> 3 VCFs, 4 ADSRs, 2 LFOs a bunch of other stuff and
> a onboard RXpro... It is all powered from the same
> 317/377 supply used for the 3500...
>
> I hooked 1 vco to the output. The LFOs to the ADSRs
> and the other 2 VCOs to the ADSRs. I am madly turning
> all cutoff, freq and fine controls as this was recorded.
> Gee Wiz!! What about that? No problem at all!
> The little pop is me bumping the mic stand. I would say
> kiss my ass....but that would be childish :)
>
> http://www.ele4music.com/pics/wildcat1.wav
>
> Tom
>
>
>
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