真空トランジスタによる振幅変調波の検波

Abstract

電界放出電子源アレイを用いた真空トランジスタの電子回路応用として, 中波帯の信号の検波を行った. 500kHzから5MHzまでの搬送波信号を500Hzから2kHzの信号で振幅変調した信号を, 検波した. その結果, 変調信号500Hzの場合, 5MHzでは若干歪んだ出力であったものの, 2MHz程度までは同様な検波出力を得た.

Attemps have been made to apply a vacuum transistor to a rectification circuit at medium frequencies. A carrier singal with the frequency between 500 kHz and 5 MHz were amplitude modulated by a audio signal with the frequencies between 500 Hz and 2 kHz, and the modulated signal was rectified by a circuit with a vacuum transistor. As a result, it was found that the signal with the frequency below 2 MHz was rectified similarly, although that with the frequency of 5 MHz was distorted.