Mounting hardware - these mounting "ears" and band were taken from a Ball CRT with a broken neck. Could be used to mount a different CRT in an ADM3a.
Just a caution on that band - *do not remove band from an intact CRT*. That metal band provides tension on the CRT against the vacuum inside versus 15 pounds per square inch air pressure outside. Yeah, 15 pounds per inch. If an un-banded intact CRT is struck and shatters, those glass shards could be propelled like a glass grenade. Most CRTs break at the neck, or the very tip at the neck. The neck is thin glass. That narrow opening slows and limits the airflow to *into* the CRT which otherwise has very thick glass. These CRTs were designed decades ago with safety in mind. A lot of small terminal and TV CRT's have a band and screw-mounts. There's no need to fuss with that band. Reattach some other kind of "ears" if needed for mounting in another TV or CRT. But I've taken TV CRTs and popped them right into ADM3A's using the same ears. regards, Herb Johnson -- Herbert R. Johnson, New Jersey USA https://www.retrotechnology.com OR .net preserve, recover, restore 1970's computing email: hjohnson AT retrotechnology DOT com or try later herbjohnson AT comcast DOT net