ZX-81 Video Display System – Part 1 Authors Wilf Rigter Publication ZXir QLive Alive! Publication Details Volume: 6 Issue: 4 Date Winter 1996 Pages 20-21 Read the article See all articles from ZXir QLive Alive! v6 n4 Products Downloadable Media Related Articles Tags ZXir QLive Alive, Tutorial, Type-in program, ZX81 People Wilf Rigter