On 8/15/2017 17:14, Fred Hicks wrote: > John, > The model number is 26-3127. > > Ed, > Here is a photo of the inside of my coco 2 video riser board: > > > https://goo.gl/photos/DAQexeBukxJEF9UD6 > > Thanks > Fred > Fascinating.... I wonder if this is related to the Composite Board that was available in the Educational CoCos??? MarkO