Mode Zero

Hi all.
Does anyone know what power an RCS guidance system needs to work? 12v?
I'm nearly finished my restoration of one of these. Just need an aerial and the right size battery. I am hoping to find a scan of a suitable battery so I can make up a mock 'period' battery. Can anyone suggest one?

Many thanks guys.

Phil and Shaun's website has downloadable scans for all the old tranny batteries.

Done some digging and found it's 12v. (2 X 6v PP1's).

Thanks for the info re scans. Great stuff.