| midnightscience.com | |
| 网站标题： | new * |
| 网站简介： | The Society, *ed in 19*, publishes a newsletter and several books about crystal radio. Content: crystal set projects, tips for crystal radio design, and crystal radio / antique radio history. |
| 关键字： | crystal radio crystalradio xtalset xtal set xtal radio crystal radio set antique radio amateur radio ham radio crystal set AM FM crystal detector antenna diode Xt |
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