Biquinary tubes require 7 wires to the outside world. there are 2 separate anodes, a front screen and a back plate. The digitsand wired together internally within the tube in (5) odd-even pairs. Those pairs are 1-2, 3-4, 5-6, 7-8, 9-0 The evens are near one side of tube, odds near other side. They are separated by a middle screen which is also brought out. Must hook a 1 meg resistor from middle screen to each digit pair, so add (5) 1 meg resistors 1 each from middle screen to each digit separately. This cuts off ghosting of unwanted digit in any pair. Make desired anode positive and take the cathode pair to GND. Appropriate digit will illuminate. They did this to cut down on driver transistors. Only 7 required per tube instead of the usual 10.
---- Original Message ---- From: "liam bartosiewicz" <liambartosiew...@gmail.com> Sent: 9/18/2021 6:04:19 PM To: neonixie-l@googlegroups.com Subject: Re: [neonixie-l] Re: Please help identifying a nixie tube. Could be an IN-4, I’m pretty sure those can be used as biquinary tubes. > On Sep 18, 2021, at 2:35 PM, chuckrr <chuc...@all2easy.net> wrote: > > almost -- 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 view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/158CEF37-98C3-44F0-8755-26E3F85C56FB%40gmail.com. </chuc...@all2easy.net></liambartosiew...@gmail.com> -- 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 view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/202109181524964.SM82098%40ADT-IM1.
