Installed regulator on panel output to feed crystal set amplifier so as long as sun shines crystal set can be heard.  Installed second ECMOT's solar panel on roof. Removed small padlock from rado container and gave it and key to ECMOT staff. Keys on key ring now are gate, rooms, container and radio room. Alistair has installed equipment for the connection of mains power to the classroom (will allow lighting and power outlets when completed).