Regency Electronics produced the first commercial transistor radio, the Regency TR-1, it hit the consumer market in October, 1954. It featured four germanium transistors operating on a 22.5-volt battery that provided over twenty hours of life (tube radios with batteries only lasted several hours at best-ref). Several colors were initially…
There was no doubt about it, point-contact transistors were fidgety. The transistors being made by Bell just didn’t work the same way twice, and on top of that, they were noisy. While one lab at Bell was trying to improve those first type-A transistors, William Shockley was working on a…
Diode Logic makes use of the fact that the electronic device known as a diode will conduct an electrical current in one direction, but not in the other. In this manner, the diode acts as an electronic switch.
As a result of a trip to the U.S.A. in June 1946, Dr F.C. (Freddie) Williams started active investigation at TRE into the storage of both analog and digital information on a Cathode Ray Tube. Storage of analog information could help solve the problem of static objects cluttering the dynamic…
A bit (abbreviated b) is the most basic information unit used in computing and information theory. A single bit (short for binary digit) is a zero or a one, or a true or a false, or for that matter any two mutually exclusive states. Claude E. Shannon first used the…
Back in 1904, British scientist John Ambrose Fleming first showed his device to convert an alternating current signal into direct current. The “Fleming diode” was based on an effect that Thomas Edison had first discovered in 1880, and had not put to useful work at the time. This diode essentially…
Pioneered with the advent of the first transistor using semiconductor materials at Bell Labs by John Bardeen and Walter Brattain, semiconductors have had a monumental impact on our society. You find them at the heart of microprocessor chips as well as transistors. Anything that’s computerized or uses radio waves depends…
The first transistor was about half an inch high. That’s mammoth by today’s standards, when 7 million transistors can fit on a single computer chip. It was nevertheless an amazing piece of technology. It was built by Walter Brattain. Before Brattain started, John Bardeen told him that they would need…