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Nascom / Lucas  - Advanced Video Controller - Model B Issue C

Description

Full colour card produced after the rescue of Nascom by Lucas Logic.  This large card (10 by 8 inch) card held 48K of DRAM, divided into 16K per RGB channel.  The red / green channels could be be combined into one green plane to give a memory mapped 80 column display for use with CP/M.

The AVC proved is an excellent high resolution card at a reasonable price point.  Its high-res green mode gives a very capable display for CP/M.

This is the only example of a non-socketted board I have ever seen from Lucas / Nascom.  Various devices are not present and only the PL1 video is present.  It is believed this was a cost reduced board used to supply an 80*25 display in CP/M workstations.

Technical Details

Documentation

Reference Image

Nascom / Lucas  - Advanced Video Controller - Model B Issue C

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