The mixing desk in Room 12. The quadrant faders shown here were replaced by carbon sliders by the mid-seventies. Note the metal gangers for linking the faders. To the right are preset level controls, echo select, echo mixture and group switches. To the left are four PEUs. In the centre are remote start facilities (not used), cue light, talkback and line-up tone keys, as well as a standard mono Peak Programme Meter (PPM).