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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 ::::::