The History of Chips

The History of Chips

Hello everyone, I am Yan Xiaobei, a science and engineering guy who understands a bit about economics.~ I am starting a new series to discuss some interesting stories in the chip field. In the first article, I talked about the origin of photolithography technology,the very first photolithography machine was actually modified from a microscope! The … Read more

Exploring WWII Military Multimeter: A Look at Vintage Technology

Exploring WWII Military Multimeter: A Look at Vintage Technology

Search on WeChat Technical Training This is our main character today, a multimeter that traveled across the ocean with the Flying Tigers to the front line of the anti-fascist war. Range switch knob. All equipment back then used vacuum tubes, and some tubes required as high as 1500V, hence there is a 1500V voltage range. … Read more