News Summary

• Besides, even a really crappy printer taken back in time to the 70s would probably be pretty exciting to anyone who saw it.“there were commercial extruders available” I bet that cost an arm and a leg!
• A 4 bit ALU chip, the 74181, became available in 1970, which makes me wonder if a more effective design would have been possible even with the limited resources available then.
• There’s at least one seller of replacement bulbs for those old stereos floating around on the forums like Audiokarma.I should not have been, given its era., but I was surprised by how large the Kenbak-1 was.We used to get SciAm when I was a kid.
• Maybe something with a bi-metal strip tacked at one end to the heat block?Thyratrons (gas-filled tubes) became available in the 1920s, and I saw them being used in 1970.
• It was an absolutely incredible work of art, and even was autographed by John Blan(kenbak)er, the creator of the original.Grant’s web sites are still up, although not secure (http, not https):http://www.kenbak-1.com/My build: http://www.stockly.com/forums/showthread.php?t=555&page=2Egads!
• I was just thinking relays but sure, if you want to do it with tubes I’d love to see what you make.Then again, clock cycles are going to be a bit too precious to consider controlling the temperature via computer.