Spectravideo SV-806
This page was last modified 21:46, 13 January 2022 by Mars2000you.


The Spectravideo SV-806 (renamed SVI-806 in 1984) is a cartridge containing a 80 column adapter. You need a mini or super expander to use it.

It allows to use the 80 column text mode on the SVI-318/328 computers, as it has the HItachi HD6845 CRTC (Cathode Ray Tube Controller) that adds this mode.

Note: There is also a model for MSX1 computers under SVI-727 reference.

Brand Spectravideo
Model SV-806 / SVI-806
Year 1983 / 1984
Launch price
Package content


Spectravideo SV-806 box
Spectravideo SV-806
Spectravideo SV-806 PCB