[sdiy] VCO - sine output - why bother?

[Donald Tillman]

> On Aug 29, 2016, at 11:28 AM, Donald Tillman <don at till.com> wrote:
> 
> One of the fascinating undocumented secrets of the ARP 2600 is that, on the second VCO,  the polarity of the Sine output is opposite the Triangle output.  So if you simply mix the two together you can suck the fundamental out of the Triangle leaving the odd harmonics.  Which can be musically useful.

One more...

Another fascinating undocumented secret of the ARP 2600 is that, with the polarity of the Square wave opposite the polarity of the Sawtooth wave, when you mix those two together you get a sawtooth wave at twice the frequency.

Weirdness just keeps happening when the phases aren't aligned.

  -- Don

--
Don Tillman
Palo Alto, California
don at till.com
http://www.till.com