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jian dan de zhong pin xin hao fa sheng qi
Author(s): 
Pages: 24
Year: Issue:  3
Journal: Family Electronics

Keyword:  多谐振荡器元件组电路集电极信号发生器耦合附图陶瓷滤波器业余无线电晶体管收音机;
Abstract: <正> 附图所示电路是一个多用途的IF信号发生器。它对业余无线电爱好者及专业人员都是非常有用的。该电路由晶体管T1和T2等元件组成一个1~2kHz音频多谐振荡器,由C6、C5、L、T3等组成RF振荡器。为了获得稳定的中频输出,图中还采用了455kHz的陶瓷滤波器(可用465kHz陶瓷滤波器代用,编者注)。由多谐振荡器产生的音频(AF)信号,从T2的集电极输出,经电容C3耦合至T3的发射
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