Was just checking http://www.bgmicro.com yesterday looking for a few various ics.
Came across this interesting one they currently have for sale on their "Virtual Sidewalk Sale" portion of their website: It's the old National Semiconductor DS8880 high-voltage 7-segment decoder/driver ic. It's a 16 pin DIP and they are selling them for $1 each. Got the data sheet. It says it can drive a gas-filled 7-segment readout by pulling the appropriate segment cathodes low. It does the full hexadecimal decoding. It has programmable current sinks on the 7 outputs. Programmable via an external resistance on a single pin. It can stand up to 80 volts on the outputs an it'll do 1.5 mA max current. The application diagram shows a typical circuit which looks just the same as a regular "1-of-10" nixie tube connected to a 74141. This DS8880 ic looks to be the 7-segment equivalent of a 74141. The app. note suggests a Beckman 7 segment tube. Have any of you guys ever messed around with those? Looks like possibly an interesting find for $1 each. I do not have any gas filled 7 segment tubes at this time. But maybe now that these driver ics have become available, it might be time to find some! What are your thoughts on this? Thanks, Chuck $4.95/mo. National Dialup, Anti-Spam, Anti-Virus, 5mb personal web space. 5x faster dialup for only $9.95/mo. No contracts, No fees, No Kidding! See http://www.All2Easy.net for more details! -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/380-22017352415260799%40all2easy.net. For more options, visit https://groups.google.com/d/optout.
