File:電気メガホンEM-202.JPG
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Summary
| Description |
English: TOA Corporation's EM-202, the first transistorized electric megaphone, or bullhorn. Developed in 1954, this was the first truly handheld public address system; previous portable P.A. systems were very heavy because of the vacuum tubes needed to power them.
日本語: 電気メガホンEM-202。東亞特殊電機製。世界初の電気メガホン。 |
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| Source | Own work |
| Author | User:実用 |
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I, the copyright holder of this work, release this work into the public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 14:49, 17 May 2009 | | 1,024 × 768 (161 KB) | 実用 | {{Information |Description={{en|1=EM-202}} {{ja|1=電気メガホンEM-202}} |Source=私物 |Author=私 |Date=2009年 |Permission= |other_versions= }} <!--{{ImageUpload|full}}--> Category:メガホン 拡声器 |
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