[sdiy] Couldn't help myself....Buchla 219

[Grant Richter]

> b) the joysticks are "hand made" from pcb material, a plastic gear
> (counterweight), 2 grommets,
> and a panel knob. The knob sits on top of a 12V lamp. The grommets are used to
> apply lateral
> pressure on the knob, so it "rides" on top of the lamp. There are 4 photocells
> in a "cross"
> pattern. The knob's skirt' allows light to "peek out"as the joystick is tilted
> to the sides. That
> wacky Don......

That is done so the Joystick shaft lights up.
> 
> c) this thing makes the MARFs look like a picnic. There are 17 kludges,
> cuts/jumps, and random
> parts attached to CMOS ICs (counted 11 of those nasty SSS parts). There is an
> 8 pin part with the
> top sanded off and "This is a 555" written in pencil on the pcb.

Yep, that typical of Buchla modules. Since only 10-15 of the 219s were made,
there was no possibility of a board revision.
> 
> I also added, in the main directory, a PDF file of the 292 and 295 modules
> plotted on the mighty
> Audio Precision System 2 DSP analyzer. See 1975 audio technology for yourself
> :)
> 

Paul, you seem to be missing the point. It's a colorful, intriguing musical
instrument, not a piece of sterile lab equipment. Who cares how perfect it
is? The Buchlas sure are a lot of fun, and fun is what music is all about.

You should try having fun some time, it's great!