Re:The mysterious heart of the Roland TR-808 drum machine
by uxp on Saturday July 28, 2018 @08:45PM
(#17635859)
It's mentioned in the article.
> How exactly Mr Kakehashi found these specific parts is not known, [...] but you can hear him tell some of the story himself right at the end of the excellent 2015 documentary movie “808”.
https://en.wikipedia.org/wiki/808_(film)
https://amzn.com/B06XT8M3TV