A 61 cm wide, by 46 cm high, by 15 cm deep, wall-mountable, electrical box indicating the status of operation of both the tandem accelerator and the cyclotron of the TASCC complex at Chalk River. The facility could be operated for lower energy beams by using the tandem only or the beam could be sent to the cyclotron to be further accelerated to higher energies before being transported to the experimental areas. Several of these units were placed around the large facility to inform personnel as to the status of the accelerators.
