Available as an assembled Module and as a DIY project.
This Module is currently available.
Single width oscillator
This is a compact well specified audio VCOs for the MU based modular synthesisers.
The S-VCO has a single tune control and an inc-dec switching system (with three way momentary switch and LED ladder display) to allow for easy control over five octaves and a wide range LFO setting.
Both variants have a variable width pulse wave as well as a sawtooth waveshaper to generate a fully varying shape from ramp through triangle to sawtooth.
The S-VCO uses a sawtooth core but with a different topology than our existing double width VCO. Hard synchronisation is possible from an external VCO.
In LFO mode the SVCO-B's tune pot will operate over a range of 0.01Hz (one cycle every 1.5 minutes) to 500Hz.
Price £190 GBP
http://www.krisp1.com/store/index.php?main_page=product_info&cPath=8&products_id=84
These merchants probably sell this module. Huh?