![File:Vintage Gaytone EM-TONE Pocket Germanium Crystal Radio, Model ER-22M, Made In Japan (15692891203).jpg - Wikimedia Commons File:Vintage Gaytone EM-TONE Pocket Germanium Crystal Radio, Model ER-22M, Made In Japan (15692891203).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/a/a0/Vintage_Gaytone_EM-TONE_Pocket_Germanium_Crystal_Radio%2C_Model_ER-22M%2C_Made_In_Japan_%2815692891203%29.jpg)
File:Vintage Gaytone EM-TONE Pocket Germanium Crystal Radio, Model ER-22M, Made In Japan (15692891203).jpg - Wikimedia Commons
![File:Vintage Lark Germanium Radio, Type ML-10, D.D.K. Co., Headphone Listening Only, Made In Japan (14856260743).jpg - Wikimedia Commons File:Vintage Lark Germanium Radio, Type ML-10, D.D.K. Co., Headphone Listening Only, Made In Japan (14856260743).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/5/51/Vintage_Lark_Germanium_Radio%2C_Type_ML-10%2C_D.D.K._Co.%2C_Headphone_Listening_Only%2C_Made_In_Japan_%2814856260743%29.jpg)
File:Vintage Lark Germanium Radio, Type ML-10, D.D.K. Co., Headphone Listening Only, Made In Japan (14856260743).jpg - Wikimedia Commons
![File:Vintage Arrow Pocket Germanium Radio, Earphone Listening Only, Made in Japan (8455790902).jpg - Wikimedia Commons File:Vintage Arrow Pocket Germanium Radio, Earphone Listening Only, Made in Japan (8455790902).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/f/fe/Vintage_Arrow_Pocket_Germanium_Radio%2C_Earphone_Listening_Only%2C_Made_in_Japan_%288455790902%29.jpg)
File:Vintage Arrow Pocket Germanium Radio, Earphone Listening Only, Made in Japan (8455790902).jpg - Wikimedia Commons
![File:Vintage Miniman Germanium Crystal Radio, Model M-702, Made In Japan, Circa 1960 (23356082450).jpg - Wikimedia Commons File:Vintage Miniman Germanium Crystal Radio, Model M-702, Made In Japan, Circa 1960 (23356082450).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/9/9e/Vintage_Miniman_Germanium_Crystal_Radio%2C_Model_M-702%2C_Made_In_Japan%2C_Circa_1960_%2823356082450%29.jpg)
File:Vintage Miniman Germanium Crystal Radio, Model M-702, Made In Japan, Circa 1960 (23356082450).jpg - Wikimedia Commons
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