4 Wave Analog Oscillator
The EMW VCO 104 is a Voltage controlled oscillator with four waveforms (SQUARE, SAW, TRIANGLE and SINE) that incorporates all analog technology. Its transistor core circuit design guarantees a vintage and powerful sound. This oscillator was designed to produce very precise waveforms and have a good stability and 1v/oct frequency tracking over five octaves.
http://www.electronicmusicworks.com/eurorack/vco-104.html
No info about availability.
$168