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I ask only once a year: please help the Internet Archive today. Right now, we have a 2-to-1 Matching Gift Campaign, so you can triple your impact!The average donation is $45. If everyone reading this chips in just $5, we can end this fundraiser today. All we need is the price of a paperback book to sustain a non-profit website the whole world depends on. We’re dedicated to reader privacy so we never track you. We never accept ads. But we still need to pay for servers and staff. I know we could charge money, but then we couldn’t achieve our mission. To bring the best, most trustworthy information to every internet reader. The Great Library for all. The Internet Archive is a bargain, but we need your help. If you find our site useful, please chip in. Thank you.
—Brewster Kahle, Founder, Internet Archive
Dear Internet Archive Supporter,
I ask only once a year: please help the Internet Archive today. Right now, we have a 2-to-1 Matching Gift Campaign, so you can triple your impact!The average donation is $45. If everyone reading this chips in just $5, we can end this fundraiser today. All we need is the price of a paperback book to sustain a non-profit website the whole world depends on. We’re dedicated to reader privacy so we never track you. We never accept ads. But we still need to pay for servers and staff. I know we could charge money, but then we couldn’t achieve our mission. To bring the best, most trustworthy information to every internet reader. The Great Library for all. The Internet Archive is a bargain, but we need your help. If you find our site useful, please chip in. Thank you.
—Brewster Kahle, Founder, Internet Archive
Dear Internet Archive Supporter,
I ask only once a year: please help the Internet Archive today. Right now, we have a 2-to-1 Matching Gift Campaign, so you can triple your impact!The average donation is $45. If everyone chips in just $5, we can end this fundraiser today. All we need is the price of a paperback book to sustain a non-profit library the whole world depends on. We’re dedicated to reader privacy. We never accept ads. But we still need to pay for servers and staff. I know we could charge money, but then we couldn’t achieve our mission. To bring the best, most trustworthy information to every internet reader. The Great Library for all. We need your help. If you find our site useful, please chip in.
—Brewster Kahle, Founder, Internet Archive
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A theoretical analysis of superheterodyne design principles has been presented with emphasis on noise figure, selectivity trade-off, spurious response, and image phasing mixers. Magnetically tunable filters have been examined on a theoretical and practical basis. Problems associated with uhf micro-miniaturization have been discussed. Examination of varactor tuning techniques and a consideration of large signal effects are presented. Distributed and active inductors and their relative advantages and disadvantages are presented. Distortion and low-noise performance of field-effect transistor (FET) and switching mixers are presented with comparisons of dynamic range.
