Here are my investigations about the different setups of the sound harware and the PDP-8 computers with some labels, what I know, what is, what I guess and what I don’t know…
1st setup: London, on stage: http://horniger.de/computer/dec/ZinovieffSU1.jpg
2nd setup: London, boatshouse: http://horniger.de/computer/dec/ZinovieffSU2.jpg
3rd setup: London EMS Studio: http://horniger.de/computer/dec/ZinovieffSU3.jpg
4th setup: London EMS or later Oxfordshire: http://horniger.de/computer/dec/ZinovieffSU3.jpg