Re: [neonixie-l] Re: Strange Nixie Sources?

I tried alot of these sites, most are useless. But a few seem serious. I have got a offer for a NL-7037 nixie tube, they want 210$ per tube. Compared to ebay prices for the Z568/Z5680 that is not really a bad price, and you see a 7037 on ebay, but lots of 568's. I will ask them how many they

[neonixie-l] Nvu

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[neonixie-l] Re: Good B7971s?

On Tuesday, 8 March 2016 17:21:10 UTC, Jonathan F. wrote: > > I have only 5 of them, one has a bottom segmet that illuminate a orange > cloud around it, possibly touching the grid or the back. I will try to > smack it. > > Btw... what kind of gasses were used in these tubes? At which pressure?

[neonixie-l] Re: Good B7971s?

Wow. A batch of 100 B7971 tubes... I wish were alive the time these were cheap and easy to find.. I have only 5 of them, one has a bottom segmet that illuminate a orange cloud around it, possibly touching the grid or the back. I will try to smack it. Btw... what kind of gasses were used in

Re: [neonixie-l] Soldering (was: my Z5660M nixie clock)

I've had success with washing boards with isopropyl alcohol then washing with water and drying. I use regular solder, nothing out of the ordinary...takes a few scrubs with IPA and the boards look clean afterwards. On Tue, Mar 8, 2016 at 8:05 AM, David Forbes wrote: >

Re: [neonixie-l] Soldering (was: my Z5660M nixie clock)

Mitch, PC board assembly factories don't use rosin flux these days, because it can't be cleaned without dangerous chemicals. My city is still remediating the ground water after the solvent trichloroethylene (TCE) got into it from the local missile factory and poisoned a bunch of people in

[neonixie-l] Re: Good B7971s?

The tubes will have been burnt-in for some time after manufacture for QC checks... maybe that'd be enough to cause the shading? Nick -- 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

[neonixie-l] Re: Good B7971s?

Back in the early 1970s, the cheap ones (~$1) all came with sockets with cutooff wires. For about double the price, you could get the bracket with the HV driver transistors. Clearly, these were used surplus from the NYSE. It seems that they stayed cheap until the Nixie nostalgia hit the

Re: [neonixie-l] my Z5660M nixie clock

I can't seem to get my boards as clean as they could be. I spray with a pc board cleaner, then wipe and let it dry, and deal with the residue. I never thought about washing with water. I'll give it a try. Thanks. On Monday, March 7, 2016 at 11:51:49 AM UTC-5, Jonathan F. wrote: > > I cleaned

[neonixie-l] Re: Good B7971s?

Hi John, I remember these - we all discussed them a while back - ISTR that we couldn;t really decide if they were new or not - the consensus was, as you say, that they were probably pulls put back in the "new" trays - a lot of these seem to have been swapped at a set time, just in case -

Re: [neonixie-l] Good B7971s?

Hi John, I have seen B7971s bearing signs of heavy use and other looking 'like new'. They all have the gray fading and its extent seems not correlated with the state of the tube. Personally I don't believe that the gray is a sign of use. Marcin On 08/03/2016 21:00, Quixotic Nixotic wrote: