1965A/B Full Stack Hookup?

I currently have a 1965A cab and have an opportunity to pickup a 1965B cab to make a full stack. Question is, how do you hook these guys up, as there's only a single jack on each cabinet. Most of my amps only have single 4, 8, & 16 ohm output jacks. I believe these are wired series/parallel @ 8ohms per cabinet.
Here's the prospect:


Here's the 1965A cab with some of my smaller heads:

 

You could make a parallel box that would give you a 4 ohm load ,without modding the cabinets .....

 

yea, just get a Y-cable or splitter box. easy-peezy. I made one a few months ago for like $10 in parts.

 

I use a Y cable to create a 4 ohm load on my 8 ohm 1965A and 8 ohm 1966B.

 

I made a series Y cable which will give you 16 ohms from 2x 8 ohm cabs.