Akela, my female German Shepherd Dog, shown here at 10 months old. This is Brutus, my black Alsatian who sadly passed away at the age of 10. He lived in South Africa in a city by the sea, which was ironic since he hated water. He was a wonderful, intelligent and kind friend who will be sorely missed.
Sony, who is often credited with developing the first portable radio, didn't come out with theirs until 1957. Don Pies Regency TR1 Website/via. It didn't take long for transistors to take over and for them to shrink down to integrated circuits to the point where you can now get an entire Radio Shack in an iPhone. It all started 60 years ago with this.
Because the current is transferred across a material that normally has high resistance (i.e. a resistor), it was a transfer-resistor or transistor. The first practical point-contact transistor was built in 1948 by William Bradford Shockley, John Bardeen, and Walter House Brattain.Patents for the concept of a transistor date as far back as 1928 in Germany, though they seem to have never been built, or at least no one ever claimed to have built them.here are essentially two basic types of point-contact transistors, the npn transistor and the pnp transistor, where the n and p stand for negative and positive, respectively. The only difference between the two is the arrangement of bias voltages.