Prototype panel for the nonlinearcircuits VCO, as a dual

From the nonlinearcircuits site:

VCO (same as the ones in VCO Panel) E/N Mikulic core mated with the features of the Aries 338 PMS VCO (VC phase modulated sync, VC pan-pulse)

This is the link to the VCO panel mentioned: http://nonlinearcircuits.blogspot.ca/2013/02/vco-panel.html