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The southern end of Room 12. In the foreground there's an EMI TR/90, complete with monitoring loudspeaker, on the left, in front of the Type B amplifier bays and tape loops, there's an LSU/10 loudspeaker, with an EMI BTR/2 recorder to the right. The Jason oscillators and keying unit, along with the Weir oscillator, Muirhead frequency shifter, B&K wobbulator and oscilloscope, are on the bench at the back.