Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!uunet!seismo!gatech!bloom-beacon!husc6!cca!mirror!datacube!dje From: dje@datacube.UUCP Newsgroups: sci.electronics Subject: Re: "Magic Eye" tubes - the Nixie C Message-ID: <100500017@datacube> Date: Thu, 16-Jul-87 14:45:00 EDT Article-I.D.: datacube.100500017 Posted: Thu Jul 16 14:45:00 1987 Date-Received: Sat, 18-Jul-87 14:01:51 EDT References: <3452@sdcsvax.UCSD.EDU> Lines: 23 Nf-ID: #R:sdcsvax.UCSD.EDU:-345200:datacube:100500017:000:817 Nf-From: datacube.UUCP!dje Jul 16 14:45:00 1987 >There were a number of ICs on the market in the early 70s that were >Nixie tube drivers....... >...horizontal output transistors and a BCD-to-10-line decoder. I seem to >remember that you had to switch about 5 ma at 250v or so. One chip is the 74141, a BCD to Decimal decoder driver w/ high voltage outputs. To turn on a neon you don't have to switch the whole voltage: just the difference between 'on' and 'off' (a few volts since they have a sharp 'knee') plus any voltage across the dropping resistor. >I am NOT an old fart. Me either. Dave Erickson ---------------------------------------------- ------ Datacube Inc. / /| 4 Dearborn Rd. ------ | Peabody, Ma 01960 || \| | ihnp4!datacube!dje || /|/ Human:(617)535-6644 ------ Fax: (617)535-5643