>From the photo Petro posted it looks like the 26 has round circles on a clear background, while the 1/7 is clipped on white?
On Monday, 22 June 2015 08:41:08 UTC+1, Terry Kennedy wrote: > > > The IV-26 are longer (112mm base to nipple) than the IVLM1-1/7 (78mm). The > 26 has slightly oval dots (actually clipped circles) on a clear substrate > while the 1/7 has true round dots on a white substrate. > > Both seem to have been manufactured by ORZEP (Orel). There are some > overlapping date codes, but the earliest date I've seen is on a 1/7 and the > latest date is on a 26. All of the 1/7 dates I've encountered have been the > older Roman numeral month form (IX-83), while 26's have been dated both > that way and the newer 8903 YYMM style. > > The brightness curve on 26's is pretty bad - they don't hit full > brightness for a few hundred hours (before that they're oddly streaky and > uneven) and they start fading noticeably after some thousands of hours. I'm > not sure about the 1/7, as I've never powered one on for long enough to > tell. > -- 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 post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/4ec0d1e9-2c86-467f-8fb9-010ffed0b43c%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
