I just finished drawing up a vero for the Musitronics Phasor II. It has 7 chips (counting the voltage inverter for the dual supply), one transistor and THREE dual vactrols! that's SIX optos! I still have a vintage original one and i love it, but I wanted to build my own slightly smaller version that runs on a standard center negative 9V supply. the vero is so big that it won't even fit in a 1590BB. it's going to have to go into a 1790NS (same size as a Hammond 1590XX) but that's still smaller than the original that runs on 120VAC.
i'm almost embarrassed to post it since it has so many cuts and links (and even some stand up resistors) but I just couldn't get it any smaller (for now). i''m sure that IvIark could since he's great at drawing them, but I doubt that he'd even want to bother drawing this one up.
looking at the schematic, it actually appeared somewhat simple (until i started drawing it up!), so here's the schematic for it.