ESPNâs latest attempt at a shake-up is more about a breakup. The Worldwide Leader in Sports is expected to assign longtime radio host Mike Greenberg to a new morning television show, according to Sports Illustrated, thus removing one âMikeâ from the popular ESPN Radio show âMike & Mikeâ that has run for over 18 years.
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.
In 1964, Sharp developed the world's first transistor calculator, which was priced at Â¥ 535,000 (US$1,400). It took Sharp several years to develop the product as they had no experience in making computing devices at the time. Two years later, in 1966, Sharp introduced its first IC calculator using 145 Mitsubishi-made bipolar ICs, priced at Â¥350,000 (about US$1000). Its first LSI calculator was introduced in 1969. This was the first pocketable calculator priced at less than Â¥100,000 (less than US$300), and turned out to be a popular item.