Dear B&O friends,
Hereby two screenshots about the B&O microfoons from the book (pages 35 & 84):
Witnesses of the Words
How 20th Century Microphones Made History
By: Marco C. van der Hoeven
ISBN 978-90-824156-0-5
Enjoy.
With regards,
Artimesia
(Perhaps you can't see the pages (photos) in this post; i am sorry for that but it is hard to get them in the post)