[sdiy] Aaaaah again, and an on topic Buchla 259 question

Aaron Lanterman lanterma at ece.gatech.edu
Wed Jun 28 09:48:32 CEST 2006


> I've never heard anyone complain about any content on this list other than 
> you. When is the last time you heard Juergen, or Ian, or Ken, or Harry, or 
> (sorry, so MANY great posters on this list that I learn from daily) ever 
> complain about political comments.

AAAAAH again. Please see previous requests to take off list (again 
referring to all parties). The list lets you do that easily in its reply 
structure.

An on topic note to make sure I'm not completely contradicting my own 
above requiest:

Buchla question on the 259: It looks to me like the "order" is control 
crossfades between two things:

http://rubidium.dyndns.org/~magnus/synths/companies/buchla/Buchla_2590_4_200.jpg

But - it's not clear from the schematic what it's crossfading between - I 
assume it's... huh, on the schematic there's an "IC31" label with a "1" 
circled, that's getting crossfadded with an IC30 with a "7" circled - but 
it's not clear what this is referring to on the other sheets. I had 
thought that it would crossfade between the square or sine out of the 
principle osc and the sine through the timbre wavefolder - but it's not 
clear which is which, or even if that's it, since I don't see a waveform 
select switch on the principle oscillator on the front panel:

http://www.buchla.com/historical/b200/images/259a.jpeg

Such things need figured out if, for instance, you're planning to keep an 
undergrad busy by having thenm clone bits of a 259. Not that I'm planning 
on doing that or anything.

How about this. If politics comes up, or someone wants to bitch about 
politics coming up (which, I suppose, I just did above), how about 
_including_ something on-topic so there will be reason for your post to 
exist as a post to SDIY instead of going into private e-mail.

- Aaron

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Dr. Aaron Lanterman, Asst. Prof.
and Demetrius T. Paris Junior Prof.    Voice:  404-385-2548
School of Electrical and Comp. Eng.    Fax:    404-894-8363
Georgia Institute of Technology        E-mail: lanterma at ece.gatech.edu
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