I can see those now that I look between the digits! Thanks Martin. I don't like the fact that the seller says they are untested... seems pretty suspect.
Bill On Wednesday, September 9, 2020 at 4:49:33 AM UTC-7 Dekatron42 wrote: > The anode is the rear large surrounding metal plate and possibly also two > of the special electrodes that you can see in between the digits, they look > sonething lik -|-|-|- if you look at the auction photos here, 2nd and 7th > from top if I see correctly: > https://www.ebay.com/itm/nixie-tube-PAIR-giant-round-long-life-NEON-READOUT-valve-BURROUGHS-1-8-inches-x2/254603559779?hash=item3b478e0363:g:fGkAAOSwZgBexnKE > > /Martin > > On Wednesday, 9 September 2020 12:59:02 UTC+2, Bill Notfaded wrote: >> >> Speaking of anodes did you see these tubes? >> [image: s-l400 (97).jpg] >> Where are the anodes in these big Mama's? >> >> Bill >> >> On Tuesday, September 8, 2020 at 9:24:58 AM UTC-7 Bill Notfaded wrote: >> >>> 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/a479accd-f819-430c-a7dc-6902b3d192c5n%40googlegroups.com.
