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Virginia Ham Plans 500 kHz Special Event to Celebrate Work of Radio Pioneers

ARRL

Well-Known Member
Nov 15, 2008
10,933
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By Brian Justin, WA1ZMS
wa1zms@arrl.net

The early history of wireless contains the names of many great pioneers. While Marconi’s name is the most well known, the names of Fessenden and Heising are only rarely mentioned. As early as 1900, Reginald Fessenden was experimenting with the direct transmission of human speech. During World War I, Raymond Heising was developing a method of constant-curren...





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  • @ heartbreaker3473:
    Hello gentlemen and Ladies. I have the dreaded RCI-2990 receive issue where my radio gets distorted when people get close to my location. I found the C90 Capacitor, but I can not for the life of me find the C89 capacitor. Can or does anyone have a picture of the exact location of C89 ? Thank you in advance, Wes
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    Wes, it's better if you start a thread on the main forum, more people are going to see your question.
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    Okay, sorry, will put in a forum
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    I put it in the general disscution help area and started a new thread. Thank you for letting me know.