Another neat one is the ultra fine mesh IN-8 nixies. Harder to find but really look great! http://www.swissnixie.com/tubes/IN8FINE/
Bill On Tuesday, September 8, 2020 at 5:06:35 AM UTC-7 Paul Andrews wrote: > I would say that the different anode styles are definitely an attempt to > trade off effectiveness, visibility and ease of manufacture. > > Some early nixies didn’t have an anode mesh. They just used the cage at > the back. I guess this wasn’t too successful though given that all later > nixies have the grid. Some (a lot of?) nixies have an additional anode, > part way up the stack of digits, it is usually shaped like a 1. I have > multiple types of top view nixie that have a rectangular anode grid that > doesn’t cover the whole stack - these tend to be later versions of the same > model, so it would seem that the design was continually being refined, > which is not really surprising. Off the top of my head, the only one I can > remember like this is the CD27. This tube also has the grid set two digits > down in the stack. Finally, the planar ZM1350 uses a transparent coating of > tin oxide as the anode grid. The technology evidenced in these tubes is > quite advanced, but ultimately short lived. > > My favorite anodes are the horizontal grids found in the ZM1177, ZM1175 > etc., not to forget the unique grid of the ZM1212/ZM1210. > > On Sunday, September 6, 2020 at 8:41:20 AM UTC-4 Robert G. Schaffrath > wrote: > >> Just theorizing but it would appear to be for legibility. The anode has >> to cover the the surface area of every digit for uniform lighting and >> firing current. At the same time, too much anode material blocks the light. >> Of the various tubes I have, Rodan GR-111Pa’s use a very fine spiral type >> wire. B7971’s use something akin to window screen. My Philips ZM-1022’s use >> a honeycomb type anode. IN-12’s use a square hole anode. Some small >> Burroughs Nixies I have use a microdot type screen. Really seems to be a >> trade off between surface coverage and legibility. >> >> On Saturday, September 5, 2020 at 10:19:13 PM UTC-4 Terry Bowman wrote: >> >>> I've noticed that Nixies have different kinds of anodes. Some have a >>> fine, rectangular mesh, others a more coarse mesh, and some a honeycomb >>> design. What's the reason? Performance vs. legibility? >>> >>> >>> Terry Bowman, KA4HJH >>> "The Mac Doctor" >>> >>> https://www.astarcloseup.com/ >>> >>> “The book said something astonishing, a very big thought. >>> It said that the stars were suns, only very far away. >>> The Sun was a star, but close up.”—Carl Sagan, *Cosmos*, 1980 >>> >>> >>> -- 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 on the web, visit https://groups.google.com/d/msgid/neonixie-l/88801751-d617-44a8-b138-5c04a3ed5c47n%40googlegroups.com.
