Link: http://www.ebay.com/itm/272108256416 This one came in a project Altair, I've already got one and don't need a second. Fully tested in my IMSAI 8080 with an Apple Monitor II composite monochrome monitor. Works with the IMSAI front panel, too! Very low serial number -- B66. There might be a custom character generator ROM in this one, it doesn't have the standard Motorola part number. Could be a house number for all I know. It does generate ASCII properly, as shown. Includes a pigtail for the composite video connector. Thanks, Jonathan