The GT-6144 Graphics Terminal Kit is a low cost graphics display unit designed to display 96 lines of 64 small rectangles per line on a standard video monitor or a slightly modified television set.
The SWTPC GT-6144 can be connected to most computer systems on the market today. Communication to the GT-6144 is via eight parallel data lines and one DATA READY line. The DATA READY line must be at logic 0 for a character to load and must remain low for at least two microseconds. The parallel interface boards of most computer systems are capable of meeting the requirements of the GT-6144.
Introduced by Southwest Technical Products Corporation in 1976 and the GT-61 kit cost $98.50
TV Photo (200 PDF)
Board Photo (352K JPG)
GT-6144 Assembly Manual (110K PDF)
BARTST-1 Program (275 PDF)
ST-1 Program (650 PDF)
GT-6144 Red and Blue Layout (500K JPG)
GT-6144 Schematic (1.5M PDF)