[sdiy] "Sound Synthesis-analog & digital techniques" by Terence Thomas

[Michael Schulze]

I have this book - and I must say it seems too good to be true.  I have not
built any of it yet, but I have already found some pretty serious errors in
the VCO layout.  The transistors are mislabelled.

These are butt-simple circuits - all discrete, not op-amps, tempco's or
anything.  The VCO is linear - no expo converter.  My guess is the circuits
will work once you figure them out - but they are gonna be unstable and
drift, etc.  However - the circuits are so simple you could breadboard them
first to test them.  If they work for you, the advantage of this book is you
could build a pretty large system real cheap...

> From: "R. Drake" <rdrake at data2action.com>
> Date: Sun, 16 Mar 2003 18:13:45 -0500
> To: <synth-diy at dropmix.xs4all.nl>
> Subject: [sdiy] "Sound Synthesis-analog & digital techniques" by Terence
> Thomas
> 
> all,
> 
> i found a bunch of xeroxes of circuits from this book in my files--they
> seemed really simple, most parts are still available, and include PCB
> layouts, so i've been thinking about building a few of these modules...
> 
> but when i was looking for a used copy of the book (its op) on amazon, there
> was a pretty harsh reader review to the effect that most of these circuits
> wouldn't even work, or were junk.
> 
> (since a lot of what i do ranges from soundscape to noise, i'm not so
> concerned with the finer points of temperature drift or pure signal... if it
> squawks, i'm happy)
> 
> anyway: does anyone have any experience with building circuits out of this
> book, particularly the analog circuits?  any comments appreciated.
> 
> thanx
> 
> 
> luigi-bob drake
> rdrake at data2action.com
> 
> 
>