Tri 2 Sin

[Fraser, Colin J]

> -----Original Message-----
> From: Paul Perry [mailto:pfperry at melbpc.org.au]
> Sent: 09 June 1998 15:07
> To: synth-diy at mailhost.bpa.nl
> Subject: Tri 2 Sin
> 
> 
> I must say I am enjoying all this thread.. makes up for a lot..

Me, too, but I'm kind of wondering why folks needing a pure sine vc
oscillator wouldn't just use a temp. compensated self oscillating
filter.
Obviously there would be no easy provision for oscillator sync, but if
you were using sync, you wouldn't be too concerned about the sine purity
anyway...

If you needed other frequency and phase matched waveforms, what about
building a vco around a self-oscillating filter core, derive a square
wave from the sine and generate a saw wave by using the leading edge of
the square to reset a cap being charged by another expo current derived
from the pitch cv.

Am I missing something ?

Colin f