Re: [neonixie-l] Minutiae - 5870 tube lead diameters

2016-05-04 Thread Charles MacDonald
On 16-05-04 02:09 PM, David Forbes wrote: I have handled a lot of 5870 tubes, making Nixie watches. About 4,000 so far. I have noticed that there are different diameters of lead wires on these tubes. (The lead wires are cast into the glass header, and the cathodes are spot-welded to them.) The t

Re: [neonixie-l] Minutiae - 5870 tube lead diameters

2016-05-04 Thread Instrument Resources of America
Or maybe the wire manufacturer had some pretty sloppy tolerances!!! Ira. On 5/4/2016 1:53 PM, Jonathan F. wrote: Do they have date codes on it? Maybe at some times they a specific wire was not available. Maybe they were made at different factories/machinea Or it wasnt a parameter that was c

[neonixie-l] Minutiae - 5870 tube lead diameters

2016-05-04 Thread Jonathan F.
Do they have date codes on it? Maybe at some times they a specific wire was not available. Maybe they were made at different factories/machinea Or it wasnt a parameter that was critical for the manufacturer. Like that little glass stem on some tubes. -- You received this message because you

[neonixie-l] Minutiae - 5870 tube lead diameters

2016-05-04 Thread David Forbes
I have handled a lot of 5870 tubes, making Nixie watches. About 4,000 so far. I have noticed that there are different diameters of lead wires on these tubes. (The lead wires are cast into the glass header, and the cathodes are spot-welded to them.) The different wires tend to be mixed together