Very timely arrival of what must be the bible on the history and materiality of capacitors, surprisingly rare, over 500 pages with more than 2000 references, published in 1927 when capacitors were high-tech. With many pictures of workers in the mica mines in India and the ladies back home who manufactured all those capacitors that kept the empire running.

#PhilipCoursey #Condensers #Capacitors #MediaArchaeology #79 #SystemsThatMatter