6V rectifier connections

[Cargers]

Good afternoon,
I am trying to find out the AC and DC terminals on the old style rectifier fitted to my 1961 B40.
Has anyone got a photo of theirs please.
Ian

[Spaceman]

In the picture, the pink is earth and the blue is -6V with the AC connections being yellow - in other words, the central terminals are the DC connections and three outer two terminals the AC connections.

[Cargers]

Thank you,
Ian