I would assume the bigger the transistor the larger the power needed to make it function properly. I wondered to myself just how big you could make one of these? Most of the ones I have seen have been small radio component sized devices. the emitter, base and collector identified as E, B, and C respectively. I was always fascinated by the concept of pushing power through such miniscule components and watching the devices they were in come to life. The 2N2222 is a common NPN bipolar junction transistor (BJT) used for general purpose. I remember learning about these when I was in high school. I don't know much about the various sizes of transistors but there are larger ones that exist. These would most likely be designed and built for specific and unique purposes. I'm certain there are transistors that are larger than what you can find in the local electronics outlet store. Now things are headed in the opposite direction smart-phones are getting larger, tablets and laptops along with monitors and flat screen televisions are increasing in size I think you would either need to increase the amount or the size of the transistors in some of these devices in order for it them work properly without overheating. There was a time when it seemed manufacturers were determined to cram as many components on as small a PCB board as possible. Observing the world around us today it would seem as if we are now on the upswing to build larger everything.
Most times things didn't light up or power on properly but working with those transistors was fun. Conductor 84 connects from base electrode 64 of the transistor 2N3055 and to the point between resistor 74 and collector electrode 82 of transistor 76. It was the beginning of the science class, and the teacher was trying to introduce us to electricity and electrical circuits.
I actually remember using a few transistors on what's called a breadboard back in high school.
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