[sdiy] When did the Buchla 259 come out?

[Magnus Danielson]

From: Aaron Lanterman <lanterma at ece.gatech.edu>
Subject: [sdiy] When did the Buchla 259 come out?
Date: Mon, 15 May 2006 19:44:31 -0400 (EDT)
Message-ID: <Pine.GSO.4.60.0605151942180.8208 at bigzilla.ece.gatech.edu>

> 
> Trying to find info on the Buchla 259, my pages come up as hits two and 
> three. ;)
> 
> Anyway... when did it come out? Did it come out after the music easel? 
> Looking at the schematics, the evolution seems to flow like this:
> 
> 258 -> Easel -> 259
> 
> but I wanted to confirm I wasn't crazy on the 259 coming after the Easel.
> 
> It seems that if one wanted to "clone" the Easel, that wouldn't make sense 
> (besides being incredibly difficult as Peter G. once noted) - one would 
> want to take recent inventions like the 259, the Bergfotron, Patchell (I 
> think it was Jim, using the THAT 140 array), and Mark Verbos developments 
> into account in making an improved version.

One should notice that in the Bergfotron, as Jörgen was considering the 258
clone, I adviced him to reduce the circuit down as the JFET was no longer
needed considering what modern op-amp comes with if just choosing wisely.
Giving that, the core becomes very similar to that of modern oscillators.

> Not that I was considering making such a thing into a senior design class 
> project or anything. :)

Naa... you wouln't! ;O)

I would recommend you to look at the el-cheapo design of the Pearl Syncussion
SY-1. It has a few interesting twists to it to say the least. The method to get
sawtooth out of the triangle core is... eh... minimalistic! ;O)
The schematics isn't for the faint-hearted schematic reader, but the
experienced will get a smile or two out of it.

Cheers,
Magnus