如果你需要购买磨粉机，而且区分不了雷蒙磨与球磨机的区别，那么下面让我来给你讲解一下： 雷蒙磨和球磨机外形差异较大，雷蒙磨高达威猛，球磨机敦实个头也不小，但是二者的工
随着社会经济的快速发展，矿石磨粉的需求量越来越大，传统的磨粉机已经不能满足生产的需要，为了满足生产需求，黎明重工加紧科研步伐，生产出了全自动智能化环保节能立式磨粉
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2023年11月17日 老矿石收音机书上一般认为矿石收音机有三大特点： 1、装置简单。 一般需要一副线圈，一个可变电容，一个检波器，一个固定电容（可以省略）和一副耳机可
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2023年3月14日 〓矿石机技术区〓 〓电子管技术区〓 〓晶体管与集成〓 〓发烧音响专区〓 〓仪表工具专区〓 〓电脑与单片机〓 〓电源技术专区〓 〓电子创客园地〓 〓电路图资
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只要是无线电接收装置就不好可能彻底摆脱天线，所谓的“无天地线”矿石收音机，只是不接外接天线和地线，电路的电感感应电波的磁场产生感应电流，电感就起到了天线的作用。
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1使用磁棒天线时，用于计算谐振频率的电感L是取插入磁棒前还是插入磁棒后？ 因为发现插入磁棒前后测得的线圈L差了一个数量级 2如何确定自己所能接收到的信号电压？ 不知
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矿石收音机实际检波二极管4个状态和三个连续点 暖风轻音 1：二极管使用频率远低于特征频率fT，此时用典型热载流子指数模型可描述精确。 2：这里讨论的是半导体肖特基二
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2012年12月6日 矿石收音机的原理与diy建议。 非常适合新手。 所谓矿石收音机，就是利用天然矿石作为检波 元件 的（例如方铅矿），不需要 电源 的，一种早期的、结构简单的收音机。 现在把用检波二极管来代替矿
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2018年4月5日 不用电源的收音机——矿石收音机（无线电科普系列 壹） 在上世纪中期，无线电制作是一项相当普遍的业余爱好，自制收音机是很多人的梦想（在那个年代，收音机就像如今的iPhone一样，是一件高级电
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矿石收音机是指用天线、地线以及基本调谐回路和矿石做检波器而组成的没有放大电路的无源收音机，它是最简单的无线电接收装置，主要用于中波公众无线电广播的接收。
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矿石收音机是一个简单的无线电 接收机，由长导线天线，用于选择信号频率的调谐器和检波器组成。 检波器可以使用 晶体 矿石,也可使用检波 二极管 ，还可以使用锗高频三极管检
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