Here is a page scan and the text from a 1978 PAiA catalog. The PVI appears to be Don Lancaster's TVT-6. http://www.swtpc.com/mholley/PAiA/TVT6_640.jpg Michael Holley www.swtpc.com/mholley Don Lancaster's ingenious design provides software controllable options including: Scrolling Over 2K on-screen characters with only 3MHz bandwidth Full performance cursor Variety of line/character formats including 16/32, 16/64 even 32/64 User selectable line lengths You'll want to see the operational details on this first. The PVI-1K is not the universal answer to every video display requirement. In applications where its minor limitations present in?surmountable obstacles to a design, more expensive techniques should be used. If you are in doubt, the PVI is completely described in the July and August, 1977 issues of Popular Electronics. Reprints of these articles are the instruction set for this kit and are available separately for $2.00 postpaid refundable upon purchase of the PVI kit. Complete kit includes circuit board, all parts and instructions and is available in either of two forms. PVI-KM Ready to go with KIM's $34.95 wt. 1 lb. PVI-MT For other processors (requires PROM coding) $34.95 wt. 1 lb. > Date: Sun, 23 Nov 2003 19:33:15 -0800 > From: Marvin Johnston <marvin(a)rain.org> > Subject: PAIA PVI-1, VT-103 > To: ClassicCmp <cctalk(a)classiccmp.org> > Message-ID: <3FC17BFB.3D525A15(a)rain.org> > Content-Type: text/plain; charset=us-ascii > > I acquired a PAIA PVI-1 circuit board yesterday, and a Google search > brings up no information about this board. The main chip seems to be a > GI 2513 with some 8 7400 and CMOS support chips. On the circuit board > are two RCA jacks labeled TV and VID, two pots labeled "H POS V", a > jumper for selecting 32 or 64, and another YES or NO jumper for the > cursor. The code date on some of the chips are in the 1977 era. Does > anyone know what this thing is, and does anyone have any docs? >