Last updated on March 14, 2016 by scary for kids. Four stories about scary phone calls. Thereâs something very unnerving about strange phonecalls in the middle of the night and unidentified voices on the other end. I grew up on a farm in a remote area and I have always been uneasy about being in the house by myself at night.
1 What present-day device did the invention of the transistor most directly influence? automobile light bulb atomic bomb laptop computer. 2  What present-day device did the invention of the transistor most directly influence? automobile light bulb atomic bomb laptop computer.
The first high-frequency transistor was the surface-barrier germanium transistor developed by Philco in 1953, capable of operating up to 60 MHz. These were made by etching depressions into an N-type germanium base from both sides with jets of Indium(III) sulfate until it was a few ten-thousandths of an inch thick.he transistor provides current gain, allowing a relatively large current in the collector to be switched by a much smaller current into the base terminal. The ratio of these currents varies depending on the type of transistor, and even for a particular type, varies depending on the collector current.