dje@datacube.UUCP (07/16/87)
>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