[sdiy] obsoletism, was: favorite "magical" op amp

[Harry Bissell]

only need one resistor, its a series circuit (two terminal device).

its entirely possible, although you probably don't have the resistor value
you need (very low ohms, maybe milliohms). Also, the ESR is distributed
(physically) so heat is spread around. You need to be sure your resistor can take it...



H^) harry



----- Original Message -----
From: cheater cheater <cheater00 at gmail.com>
To: David G. Dixon <dixon at interchange.ubc.ca>
Cc: Synth-diy at dropmix.xs4all.nl
Sent: Thu, 07 Oct 2010 04:47:05 -0400 (EDT)
Subject: Re: [sdiy] obsoletism, was: favorite "magical" op amp

Which reminds me I was thinking last week about whether two resistors
in series with a cap (before and after) are enough to simulate ESR. As
I understand, ESR in those things comes from the oxide layer
collecting on the electrodes.

I think it would be interesting to think about how ageing, 30-year-old
parts in synth circuits can be simulated with new parts. Then do an
analysis of something like that translated onto some vcf or vco that
has "classic analog sound", but only because it's gotten old and the
parts have deteriorated.

On Wed, Oct 6, 2010 at 22:41, David G. Dixon <dixon at interchange.ubc.ca> wrote:
>> Is this sort of like me saying, "I like my EML 500 better than my Mini-
>> Moog because the filter doesn't make that icky whistly sound"? Chracter
>> wise, I mean.
>
> Yes, we do often talk out of both sides of our mouth on this issue.  We'll
> have a week-long thread about whether some military-grade pot which costs
> $10 is good enough to go on a VCO panel or not, and then follow that with a
> discussion of why the shittiest old components in compromising positions led
> to some classic synth sound which can only be approximated with superior
> modern parts.  IMHO, it's all part of the fun of this unique thing we call
> "synth DIY".
>
> _______________________________________________
> Synth-diy mailing list
> Synth-diy at dropmix.xs4all.nl
> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy
>
_______________________________________________
Synth-diy mailing list
Synth-diy at dropmix.xs4all.nl
http://dropmix.xs4all.nl/mailman/listinfo/synth-diy

-- 
Harry Bissell & Nora Abdullah 4eva