Message:19025 In: ALL.WW
From: LU9DCEDate: Tue, 17 Mar 26 18:30:00 Z
Newsgroups: ALL.WW
Subject: ELECTRONICS FACTS 17-MAR
Message-ID: <9467_LU9DCE>
Path: GB7RJJ|GB7YEW|LU9DCE
R:260317/1830Z 10026@GB7RJJ.#79.GBR.EURO LinBPQ6.0.25
R:260317/1830Z 15683@GB7YEW.#79.GBR.EURO LinBPQ6.0.24
R:260317/1830Z 9467@LU9DCE.TOR.BA.ARG.SOAM LinBPQ6.0.25
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PACKET RADIO STATION - BUENOS AIRES (GF05OM)
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THE FIRST TRANSISTORS INVENTED IN 1947 AT BELL LABS WERE MADE FROM
GERMANIUM RATHER THAN SILICON, EVEN THOUGH SILICON IS MORE ABUNDANT IN
NATURE. GERMANIUM WAS CHOSEN SIMPLY BECAUSE IT WAS EASIER TO PURIFY
USING 1940S TECHNOLOGY, BUT THESE EARLY TRANSISTORS HAD A CRITICAL
FLAW: THEY WOULD COMPLETELY STOP FUNCTIONING IF THE TEMPERATURE
EXCEEDED 85 DEGREES CELSIUS (185 DEGREES FAHRENHEIT). THIS THERMAL
LIMITATION MADE THEM IMPRACTICAL FOR MANY APPLICATIONS UNTIL SILICON
PURIFICATION TECHNIQUES IMPROVED IN THE 1950S, ALLOWING SILICON TO
BECOME THE DOMINANT SEMICONDUCTOR MATERIAL DESPITE BEING INITIALLY
HARDER TO PROCESS.
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PYTHON PREPROCESSOR - DEVELOPED BY LU9DCE - VERSION 1.1
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