The manuals I have list the Tek 602 (shows up on ebay cheap), Tek RM503 along with the DEC VR14. The 602 is a smallish scope size screen XYZ monitor. The 602 needs some components changed to use it (resistors and capacitors). If you need the info email me. Tek made a bunch of different models which others will probably work but don't know which specific ones. Don't know what the persistance of the 602 is. I also found a reference to using a storage monitor so picked up a Tek 611 (613 similar). It is a bigger screen. Haven't actually tried it yet though. It can be used storage or non storage. Storage tubes tended to not be very durable.