XN-13

The XN-13 numicator from Hivac is a regular size tube. It features the gold-colored anode that is common to Hivac tubes. To my eyes, this seems to be a chromate conversion coating.

Here are some photographs of the tube from various angles, followed by a video of it in action. Some additional information is at the end.

Compatible tubes: GN-13A

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.