Nixie Tube Multimeter - Bell & Howell / Heathkit 1970's

In this video we check out a vintage Bell & Howell Nixie Tube digital volt meter.
I'll do a demo of how the unit works. We'll go over what's inside a Nixietube, and take a peek inside the machine.
This unit was made by Heath (aka Heathkit) model no: IMD-202-2, and appears to be a clone of Heath's IM-1212.

Burroughs Catalogs:
https://archive.org/details/Burroghs_Nixie_Tube_Catalog_B_W
https://archive.org/details/TNM_Nixie_Tubes_Flyer

Heathkit Catalogs:
https://www.worldradiohistory.com/Archive-Catalogs/Heathkit-Catalogs

00:00 Intro
00:30 History & How they work
01:08 Demonstration
02:13 Heathkit
02:41 A Look Inside
03:24 Outro