Question

what were the transistors made up of​

Answer 1

Answer: A transistor is a semiconductor device used to amplify or switch electronic signals and electrical power. Transistors are one of the basic building blocks of modern electronics. It is composed of semiconductor material usually with at least three terminals for connection to an external circuit.

Answer 2

Answer:

originally manufactured using Germanium this was the standard for the first decade of transistor production the silicone base transistor that were used seeing today were adopted because germanium break down at 180 degree.