advanced analog oscillator
Analog oscillator with a very own approach and that is two independent frequency control circuits beetween which the VCO can switch autonomously. This alters both the sound and frequency ratios, created glitches and new wave forms. An AM input is used, depending on a pot's setting, as a extra audio input or a the modulation signal for the awesome ringmodulator.
Difficult to describe but very unique and interesting!
http://www.schneidersladen.de/en/christiann-guenther-xr22-minijack.html
No info about availability.
$340