I have a question about the operation of the Model T. Am I right in thinking that the only way that the test chamber can go above its set temperature at steady state is by the reactor going into runaway mode? It seems to me that if the reactor is simply giving off excess heat, the PID controller should reduce the input current until the set temperature is regained.
If I am right in this then judging by the high-temperature effects seen in Bob Greenyer's post-mortems of Lion 1 and LION 2, the control side should have been quite cool -- almost ambient temperature -- during the runs. It should definitely have not been glowing and LION should almost have been able to touch it without protective gloves.