NRU, it depends.
The later model was the Mk3. It was easier to use. You rotated the knobs, can't remember much detail as I only used it a couple of times on the Meteor and the readings were presented as numbers.
The Vulcan also had the Mk3. It was SOP to switch it off after the climb and back on at TOP of descent before doing a Gee homing to overhead. In 1964 Gee was replaced with TACAN.
It is likely that the Valiant had Mk3. The control panel was roughly 6inch by 2inch compared with the laboratory size box of Gee 2.
I do know that the Valiant tankers had TACAN in 1964 as it was part of the AAR RV procedures.