Rotary Switch is 2P5T and they are not always numbered.
I've called the 2 poles A & C.
When the switch is on "A-1" position on the other side is on "C-1" position... and so on.
Original circuits' schematics use Ge diodes but the Apocalypse's one doesn't. Need to test.
16/02/17 Layout Updated! There were a few mistakes in the first schematic:
Added 100n cap to Sw A-3, Reversed MPSA06 and connected TL072's pins 3 & 5.