Schematics of Atanasoff-Berry Computer logic circuits?

[William Blair]

steven.alan.canning at verizon.net:

> If I had meant audiophiles I would have stated such. The "tweaks"
> are the ones that can hear the nuances in an amplifier that cannot
> be quantified because they don't exist. They describe an amplifier
> as if it were a bottle of wine... Somehow they are never willing to
> submit to a double-blind test to check their palette.

Although this is way off-topic, I think that a lot of the "tube sound" claims may have to do with audio distortion.  Here are some audio tests of a type of tube amp I built:

http://www.ibiblio.org/tkan/audio/millett.html

I saw these tests before building the amp.  And since I have a significant hearing loss in both ears, I built the amp just to play with tubes, not for any audiophile reasons.  If the people who can actually hear any difference claim to like tube amps over solid-state even if that difference is actually due to audio distortion, more power to them.

On the topic of imagining audio differences that aren't actually there, I read the article referenced here way back in 1983.  I was not surprised by the results:

http://www.roger-russell.com/wire/wire.htm#reviewdares