Ichiman, K. (2020). Senzen, senchū no rajio-tō [Pre-war and wartime radio towers]. Sangyō Kōkogaku [Industrial Archaeology], (157):120–124.
Maruyama, Y. (2021). Kansai ni nokoru media ikō - JOBK no kensetsu shita rajio-tō 関 西に残るメディア遺構 - JOBKの建設したラジオ塔. Fukuyama Daigaku Ningen bunka gakubu kiyō 福山大学人間文化学部紀要, 21:13–25.
All images are author’s own or contributed by the uploaders to the Wikimedia Commons ‘Radio Speaker Towers’ category.
This is still very much a work in progress, as is research on ‘radio towers’ in general, and new information will be added as it comes to light.
14 May 2023: Locations of missing RTs in Kyoto CIty and Fukuoka Prefecture added
There are two locations in the yearbook lists that I have not been able to identify with any degree of accuracy; these are 小倉市判津新町公園 and 福岡県太宰府町東園内. Hitomi suggests that the first might contain an incorrect character (incorrect: 判津, correct: 到津), the second (‘Azuma-en’ in Dazaifu) is still proving elusive, I’m pretty sure it’s not the Chinese restaurant that seems to be Google search’s favourite suggestion.
16 May 2023: Locations of missing RTs in Kagoshima, Oita and Miyazaki Prefectures added
In Kagoshima there is one location which I have been unable to identify and which is thus missing from the map; 鹿児島県鹿屋町信用組合横広場. Kanoya(chō) is still there but I haven’t managed to identify the location of any ‘shinyō kumiai’ that existed at the right period.
17 May 2023: Locations in Aomori Prefecture added.
2-3 Jun 2023: Locations in Chiba, Kanagawa, Ibaraki, Tochigi, Gunma, Fukui and Niigata added.
5 Jun 2023: Locations in Ishikawa Prefecture added.