Long time ago but....
As I recall - and I think then it was all on VHF
Marham - Stud 18 Tower (local) Stud 17 Approach 16 Director and 15 Talk down
So, start up on 18 and for taxi and take-off when airborne to 17 and then to whatever radar— was it Northern or Midland ?
On return on handover from whichever radar initially to Approach on stud 17 and then to Director etc unless you were doing a visual circuit.