Hello, I've acquired several Burroughs BIP-8820 Nixie Decade Counter/drivers. There is no pinout or detailed datasheet on how to them as far as google is concerned. A general description is given here ( http://tube-tester.com/sites/nixie/dat_arch/BSG-Bulletin_1061K.pdf) on page 11. I have been able to poke around and find that pin 4 is common, pin 2 is +5V and pin 6 is the anode (with resistor). It's quite similar to the BIP-8804 decoder/driver with datasheet here ( http://www.decadecounter.com/vta/pdf2/BIP-8804.pdf).
Eventually I found a broken one and picked it apart to figure out what the other pins do. From the 1061 sheet I know there need to be 4 BCD outputs and a reset (possibly more stuff). After removing all the epoxy I found two old Signetics chips in there. The Signetics logo is the one used in the late 60s but I can't find any data using the part numbers on the chips. Can anyone identify these chips (image links below)(I'm assuming one decade counter with BCD output and a nixie driver)? I'd like to make an unofficial BIP-8820 datasheet for anyone else out there with these... http://i.imgur.com/V2Cos.jpg http://i.imgur.com/3nn1i.jpg -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To view this discussion on the web, visit https://groups.google.com/d/msg/neonixie-l/-/hR3VS3zFt1wJ. To post to this group, send an email to neonixie-l@googlegroups.com. To unsubscribe from this group, send email to neonixie-l+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
