Size of this preview: 800 × 600 pixels. Other resolutions: 320 × 240 pixels | 640 × 480 pixels | 1,024 × 768 pixels.
Original file (1,024 × 768 pixels, file size: 161 KB, MIME type: image/jpeg)
 | This is a file from the Wikimedia Commons. Information from its description page there is shown below. Commons is a freely licensed media file repository. You can help. |
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。 |
| Date | |
| Source | Own work |
| Author | User:実用 |
Licensing
|
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. |
File history
Click on a date/time to view the file as it appeared at that time.
| 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 |
File usage
The following pages on the English Wikipedia use this file (pages on other projects are not listed):
Global file usage
The following other wikis use this file:
