Taxan 720-U CRT (and Tandy 1000)

My contact at the dump had set aside a Tandy 1000 for me (and thankfully the keyboard and a joystick hadn't vanished, like they have with other vintage systems I've hauled away from there). We did a quick search around for the Tandy monitor with no luck, but I did locate a Taxan 720-U display in the monitor pile - the connector is a DE9 which is why it caught my eye. Does anyone have any information on this display? What with the DE9 I was hoping it was EGA or CGA (and compatible with the Tandy), but the few google results I'm seeing suggest it's a multisync capable of 800x600 resolution, which makes it sound more like VGA (and I have a very dim memory of some early VGA hardware being crammed into a DE9 connector, rather than the typical DE15) cheers Jules