tag:blogger.com,1999:blog-5837660608809488753.post1659355359985072784..comments2024-03-28T20:53:49.167-04:00Comments on The Adventures of Roberta X: Brownburg Hamfest/Indiana Historical Radio Society MeetRoberta Xhttp://www.blogger.com/profile/09956807794520627885noreply@blogger.comBlogger4125tag:blogger.com,1999:blog-5837660608809488753.post-91447680649429795762014-02-23T10:03:17.061-05:002014-02-23T10:03:17.061-05:00Not and keep it running for very long - the first ...Not and keep it running for very long - the first FET (IIRC) was a crystal-radio-era discovery that didn't go anywhere for a couple of generations. "Point-contact" transistors sometimes showed up but they were flukey, unstable things; you'd never get enough of them running at the same time for a superhet receiver, let alone a useful logic gate -- and you'd need millions of gates to build a CPU. (And one more Gates, I suppose, to sell you an operating system).<br /><br />You'd be better off with clockwork -- and a very large building in which to keep it. It's been done, at least for a machine that prints log tables; like the Arthur C. Clarke analog in Harry Harrison's "A Transatlantic Tunnel, Hurrah!" you'd need to keep an oil can at ready and to be ever on the lookout for excessive lash in the gear trainsRoberta Xhttps://www.blogger.com/profile/09956807794520627885noreply@blogger.comtag:blogger.com,1999:blog-5837660608809488753.post-6214636430163971352014-02-22T23:37:16.607-05:002014-02-22T23:37:16.607-05:00I've wondered if it's possible to build a ...I've wondered if it's possible to build a crystal computer by analogy to a crystal radio.Josephhttps://www.blogger.com/profile/04720409839023747889noreply@blogger.comtag:blogger.com,1999:blog-5837660608809488753.post-79736193247371629702014-02-22T14:45:15.712-05:002014-02-22T14:45:15.712-05:00If you passed a DX120 no loss, a 160 is a find.
...If you passed a DX120 no loss, a 160 is a find. <br /><br />Either is a good fun radio but the DX160 is better and more stable.<br /><br />I have both and a AX180, a nice solid state dual conversion hambands plus 15MHZ and 11M radio. Makes a fairly usable SSB/CW radio even in current band use. Not bad for 1973 design.<br /><br />I do the New England ham fleas as that's where I roam.<br /><br /><br />Eck!Eck!https://www.blogger.com/profile/13890237094647111653noreply@blogger.comtag:blogger.com,1999:blog-5837660608809488753.post-88242716462831061772014-02-22T13:06:05.632-05:002014-02-22T13:06:05.632-05:00I must have missed you in Brownsburg. I left ther...I must have missed you in Brownsburg. I left there about 10. Didn't see anything I couldn't live without.Fuzzy Curmudgeonhttps://www.blogger.com/profile/03802539927743643041noreply@blogger.com