Tristan Mumford wrote:
Michael J. Mahon wrote:bieling@terra.es wrote:<http://ericclever.com/6500/TV_Typewriter.html> I read this book back then, because learning how to build something that could display characters on the TV screen (no more, no less) was *so* thrilling, but in the end it's true that this project was both "extremely ingenious and ultimately misguided", unlike some other "TV TypeWriters" that came later... 8-)The original "TV Typewriter" was all TTL integrated circuits and shift registers--the 6502-based design was Lancaster's later RAM- based cost-reduction.I've never actually owned a TTL Cookbook so I can't state either way, but in the CMOS cookbook one of the projects is a TV Typewriter. It makes me wonder if these designs have any common heritage.
Well, they both have the same father...Don Lancaster. ;-) -michael NadaNet networking for Apple II computers! Home page: http://members.aol.com/MJMahon/ "The wastebasket is our most important design tool--and it's seriously underused."