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Homebrew Challenge II Winner #1 - The Lowest Cost Entry

机译：Homebrew Challenge II获胜者＃1-最低费用

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摘要

Why use a current source? [...] if driven from a voltage (low resistance) source, the temperature variation of diode forward voltage will be reduced by the divider formed between the diodes' changing forward voltage and the other resistors in the circuit.
机译：为什么要使用电流源？ daccess-ods.un.org daccess-ods.un.org如果从电压（低电阻）源驱动，二极管正向电压的温度变化将通过在二极管的正向变化电压与电路中其他电阻之间形成的分压器来减小。

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  • 来源
    《QST》 |2010年第6期|p.30-33|共4页
  • 作者

    Donald W Huff;

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    Donald W. Huff, W6JLARRL Member Don Huff, W6JL, started homebrewing radio gear at age 11 with crystal sets and one tube receivers. He learned CW with a J-38 key and doorbell buzzer and obtained his Novice class license (KN6KDE) just after his 15th birthday in 1955. He has been a CW and homebrew fan ever since. His first transmitter was a homebrew tritet 6V6 oscillator from a 1946 QST article. Four months later Don obtained his General class license and became K6KDE.Don started his first electronics job in a transformer factory just out of high school. There he met his first engineers and his future wife, Linda. With Linda 's help, he worked his way through college and earned a BSEE and then an MSEE. He joined Hewlett-Packard's research and development team and worked therefor 39 years until he retired in 2005.Don has always been active and on the aireven through college and other interests including owning and flying airplanes, raising two children and building their house together. He has always enjoyed working with his hands and is a CW only and homebrew only operator. You can reach Don at 643 Tumble Creek Ter, Fallbrook, CA 92028 or at w6jl@sbcglobal. net. QST;

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