The number of leads and layout (13 with a gap) matches ZM1175, you should check the assignment against a datasheet. The Japanese CD66 has 12 leads with no gap.
On Monday, January 19, 2026 at 2:23:45 AM UTC-5 Bogdan Paduraru wrote: > The same structure is shared with the ZM117X series too , the tube seem > to bi similar to ZM1175 but missing some internal components . > Looks like I ve got something similar in my collection too > Could be some preproduction samples made by Philips /Mullard ? > > On Sunday, January 18, 2026 at 8:40:15 PM UTC+2 Nicholas Stock wrote: > >> Looks like a Japanese style CD nixie due to the horizontal mesh wires... >> maybe CD66A? >> >> https://www.nixies.us/bwg_gallery/cd66a/ >> >> Nick >> >> On Sun, Jan 18, 2026 at 10:17 AM 'Oskar' via neonixie-l < >> [email protected]> wrote: >> >>> One says 280 and the other 387 >>> >>> bogdan paduraru schrieb am Sonntag, 18. Januar 2026 um 17:28:54 UTC+1: >>> >>>> Cool find Oskar >>>> Seems that there is a number written on the back , both of them have >>>> the same number? >>>> >>>> I doubt that any Chinese made nixie is near to the quality of these >>>> >>>> On 18 Jan 2026, at 18:25, Leroy Jones <[email protected]> wrote: >>>> >>>> Perhaps Chinese QS 18-12 ? >>>> >>>> >>>> >>>> On Sunday, January 18, 2026 at 10:43:48 AM UTC-5 Oskar wrote: >>>> >>>>> I recently acquired these two Nixie tubes. I was mostly interested in >>>>> them because one had copper legs. Unfortunately, they are unmarked. They >>>>> look almost identical to Mullard ZM1175s but the pinout and key >>>>> orientation >>>>> do not match. Does anyone recognize them? >>>>> >>>>> Thanks >>>>> Oskar >>>>> >>>> -- >>>> 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 [email protected]. >>>> To view this discussion, visit >>>> https://groups.google.com/d/msgid/neonixie-l/9050e697-e794-44a3-a1dc-a583d8fa1edfn%40googlegroups.com >>>> >>>> <https://groups.google.com/d/msgid/neonixie-l/9050e697-e794-44a3-a1dc-a583d8fa1edfn%40googlegroups.com?utm_medium=email&utm_source=footer> >>>> . >>>> >>>> -- >>> 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 [email protected]. >>> >> To view this discussion, visit >>> https://groups.google.com/d/msgid/neonixie-l/69a21b33-62f7-44df-8b47-f490d63adf66n%40googlegroups.com >>> >>> <https://groups.google.com/d/msgid/neonixie-l/69a21b33-62f7-44df-8b47-f490d63adf66n%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> >> -- 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 [email protected]. To view this discussion, visit https://groups.google.com/d/msgid/neonixie-l/378d40d3-8d8e-42cf-be45-ff4bac5cabben%40googlegroups.com.
