3 ms·
The japanese version of the article linked in another comment has a color photo (which appears to be a magazine scan) https://audio-heritage.jp/DIATONE/diatones
by kalleboo 10mo ago
The japanese version of the article linked in another comment has a color photo (which appears to be a magazine scan) https://audio-heritage.jp/DIATONE/diatonesp/d-160(1).jpg https://audio-heritage.jp/DIATONE/diatonesp/d-160(1).jpg