3 ms·Didn't that refer to the adhesive tape used for hand-drawing optical masks?by mrob 7y agoDidn't that refer to the adhesive tape used for hand-drawing optical masks?pjc50 7y agoYes, "rubylith" was used for the 6502.bsder 7y agoPerhaps, but I don't remember it in that context. Maybe someone older than me might remember. I do remember it from back when we used to mail reel-to-reel magtapes around.