The answer will be yes that you can output video from really old cameras to a modern recording medium, one thing to remember too is studio cameras are generally hooked up to rack CCU equipment and the composite video output would come out from the CCU equipment I assume. The video sockets would probably be of some old format along the lines of UHF
correct me if I'm wrong?
Anyhow Chuck's mate in the UK whom collects old broadcast cameras too has kindly dubbed me a VHS copy of his 1963 EMI B&W image orthicon camera in action which he pointed the camera around in his house and also pointed it to the CCU which he demonstrated the adjustments on the camera.
So I assume it all boils down to composite video signal output which in the case of studio cameras it would come from the CCU.
Cheers
Troy