[mvpel]

He returned the next day, and proposed that instead of machining it out of a single piece of metal, they stamp copper sheets, stack them and machine the remaining cavity smooth. The idea worked beautifully, and Raytheon wound up producing over half of all magnetrons produced during World War II.

The original R6σ project!

[Lonesome in Massachussets]

The original R6σ project!

No way. There were no view graphs and the product would have been rolling off the production line about the same time that Japanese were setting up an administrative government in Honolulu.