On Fri, Mar 1, 2019 at 7:18 AM Martin Potter <ve3oat@...> wrote:
Just waiting for my uBitX V5 to arrive and wondering how hot the IRF510s in the PA might get under normal operating (transmitting) conditions.? I am thinking of putting an LM35 temperature sensor on one of the heat sinks just to keep an eye on the temperature.? Has anyone done this with V4 or V3?? Is it worthwhile?
As I recall, the LM35 gives a linear output voltage directly proportional to temperature, 0-50 C.? I used one on the PA of a beacon transmitter I built many years ago and was very happy with the results.? (There was never a temperature problem, but at least I knew what it was.)
