The monitor frame says Disco, and has a sticker for tube 19vKUp22.. but the tube itself is an RCA and has a sticker 19VMNP22.. also one sticker has a G07 in it, but it may just be concidence as part of that model /serial number.. any idea what monitor this is? it is firing up, but has lines running through it (raster?) and not displaying a picture.

