That was a time when paper tape was all the rage (stock tickers, industrial automation). Perhaps just a heavy tape in a continuous loop with all the pixels punched in it and a separate read head for each pixel column in the outside display. Bob Ammerman RAm Systems ----- Original Message ----- From: "Jinx" To: Sent: Thursday, February 28, 2002 9:43 PM Subject: [EE]: Old (ancient) message scrolling > I was watching a TV program that had newsreels of > scrolling message boards (a la Times Square round- > the building) from the 1930s. How did they do that ? > Valves ? Motor switching ? Thousands of relays ? And > how about the message itself. Was it stored in a patch > board or something similar ? > > -- > http://www.piclist.com#nomail Going offline? Don't AutoReply us! > email listserv@mitvma.mit.edu with SET PICList DIGEST in the body > > -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body