see also https://github.com/schlae/scopetrex https://github.com/schlae/scopetrex with the plan to build a clone. You need a XY Monitor - https://jmargolin.com/

see also https://github.com/schlae/scopetrex https://github.com/schlae/scopetrex with the plan to build a clone. You need a XY Monitor - https://jmargolin.com/xy/xymon.htm https://jmargolin.com/xy/xymon.htm or if you have a normal CRT, you can add the XY kit: https://www.retrorgb.com/vector-monitor-xy-kit.html https://www.retrorgb.com/vector-monitor-xy-kit.html