They are ridiculously expensive, but there was an article in a magazine that said that a certain vendor of ready-to-eat food uses for cooking its food an industrial microwave oven with gallium nitride transistors instead of a magnetron.
Like I have said, the advantage of transistors is that it is easy to modulate in frequency the microwaves. This avoids to have standing waves inside the oven, which cause cold spots and hot spots, so they ensure that heating is uniform everywhere in the oven.
I assume that this advantage is more important for a big industrial oven, where many portions of food are cooked simultaneously and it is desired that all of them are cooked uniformly.
But for home users, magnetrons will not be replaced any time soon.
alt Hacker News
They are ridiculously expensive, but there was an article in a magazine that said that a certain vendor of ready-to-eat food uses for cooking its food an industrial microwave oven with gallium nitride transistors instead of a magnetron.
Like I have said, the advantage of transistors is that it is easy to modulate in frequency the microwaves. This avoids to have standing waves inside the oven, which cause cold spots and hot spots, so they ensure that heating is uniform everywhere in the oven.
I assume that this advantage is more important for a big industrial oven, where many portions of food are cooked simultaneously and it is desired that all of them are cooked uniformly.
But for home users, magnetrons will not be replaced any time soon.