HELP! need diagram of SWAC two

Hi folks,
I am just getting back into the hobby after a 20 year absence. I found my old home made SWAC two power pack but cannot find the walkaround control units for it . I can easily make some more but I need the diagrams for them. They were in RMC in about 1975-1977. My local library doesn’t have them. Can anyone help?
Bruce in Winnipeg