Morning coffee and a little time with, my ‘new’ slide rule and this manual, https://www.sliderule.ca/manual.htm thanks to @rek & @neauoire.
@furiousgreencloud @rek I wrote a guide specifically for the Bamboo, might help using the Sin() rule which was a big puzzle for me at the time.
https://wiki.xxiivv.com/site/slide_rule.html
@rek @neauoire honourable mention to my Sharp EL-532, whose battery was been running since 1996, without change in quality.