Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!uunet!seismo!husc6!mit-eddie!uw-beaver!tektronix!tekcrl!tekchips!jans From: jans@tekchips.TEK.COM (Jan Steinman) Newsgroups: sci.electronics,talk.bizarre Subject: Re: Re: "Magic Eye" tubes (& other ancient technology) Message-ID: <1468@tekchips.TEK.COM> Date: Fri, 17-Jul-87 13:22:22 EDT Article-I.D.: tekchips.1468 Posted: Fri Jul 17 13:22:22 1987 Date-Received: Sat, 18-Jul-87 18:27:33 EDT Organization: Tektronix Inc., Beaverton, Or. Lines: 15 Xref: mnetor sci.electronics:1004 talk.bizarre:2542 <<<...you should have used a "vibrator" (the _electronic_ kind :-) ) as the inverter element... Does anyone remember the pleasant, "state-of-the-art" hum which emanated from portable equipment which used vibrators? I seem to recall that most vibrators operated around 115 Hz. Hmmm... Have I just severely dated myself talking about vibrators?>>> I remember as a 9th-grader, ripping apart car radios. At the time, my dad had just replaced the ignition coil on our Ford. Well, I mounted the vibrator, ignition coil, and two lantern batteries on a small chassis, wired the whole thing to the striker-plate of the science classroom door, and closed it behind me. No one could get in for about 30 minutes until the batteries died. For some reason, I didn't get expelled that time! :::::: Software Productivity Technologies --- Smalltalk Project :::::: :::::: Jan Steinman N7JDB Box 500, MS 50-470 (w)503/627-5881 :::::: :::::: jans@tekcrl.TEK.COM Beaverton, OR 97077 (h)503/657-7703 ::::::