> The Korg Mono/Poly uses an R/2R divider, SSM's and tempcos and from > my stability measurements the design and tuning are rock solid > after it warms up. The bottom line, it sounds great. I thought the Mono/Poly uses SSM2033 VCOs. Unlike the SSM2030s (Prophet ...) they didn't need tempco resistors, but had a heater on chip. JH.