135.95 IIRC was Bomber Common 2
115. 56 was Flying Training Common
There were 3 VHF Boxes. The RAF had two, one was high channels and the other low channels. The 3rd box fitted between the high and low and was fitted to RN aircraft
AFAIK
On rangers the AEO would work out a crystal plan and swap out VHF boxes when in a new operating area. The STR 18 HF was also crystal controlled and sometimes would be recrystalised in flight.