Re: [neonixie-l] Used or NOS?

2016-03-19 Thread Dekatron42
I just remembered that they are used in the Leybold 55952 counter as voltage regulators for the Geiger-tube power supply, but I can't remember how they glowed even though I think they actually glowed as four distinct tubes inside the envelope. I restored one of those counters and passed it on

Re: [neonixie-l] Used or NOS?

2016-03-19 Thread Dekatron42
I just had a look at the datasheet for the tube and it is shown as all voltage regulators are encased in one envelope, not four separate. http://www.radiomuseum.org/tubes/tube_zz1030.html & http://frank.pocnet.net/sheets/128/z/ZZ1030.pdf /Martin On Wednesday, 16 March 2016 13:09:37 UTC+1,

Re: [neonixie-l] Used or NOS?

2016-03-19 Thread John Rehwinkel
> > OK... so why a getter in this one? All the little NEON tubes are each > already sealed. I don't think they're sealed. I think their tips are open to the main enclosing envelope. - John -- You received this message because you are subscribed to the Google Groups "neonixie-l" group.

Re: [neonixie-l] Used or NOS?

2016-03-19 Thread JohnK
To: neonixie-l Sent: Wednesday, March 16, 2016 10:42 PM Subject: Re: [neonixie-l] Used or NOS? I just had a look at the datasheet for the tube and it is shown as all voltage regulators are encased in one envelope, not four separate. http://www.radiomuseum.org/tubes/tube_zz1030.html &

Re: [neonixie-l] Used or NOS?

2016-03-18 Thread Dekatron42
As you say it looks like the tips are open, they certainly aren't melted at the tip like the four separate ones. It would be interesting to see the result if the ZZ1030 was checked with a plasma lamp, that would show if there is neon gas in the envelope or just in each voltage regulator tube.

Re: [neonixie-l] Used or NOS?

2016-03-18 Thread JohnK
- Original Message - From: John Rehwinkel To: neonixie-l@googlegroups.com Sent: Wednesday, March 16, 2016 10:19 PM Subject: Re: [neonixie-l] Used or NOS? OK... so why a getter in this one? All the little NEON tubes are each already sealed. I don't think they're sealed. I think

RE: [neonixie-l] Used or NOS?

2016-03-16 Thread Tidak Ada
Verzonden: woensdag 16 maart 2016 11:31 Aan: neonixie-l Onderwerp: Re: [neonixie-l] Used or NOS? On Tuesday, 15 March 2016 17:31:44 UTC, Jens Boos wrote: I don't think it would be counter-productive, see e.g. the XN-1. Neon and argon are noble gases and hence they almost don't interact with getter

Re: [neonixie-l] Used or NOS?

2016-03-16 Thread Nick
On Tuesday, 15 March 2016 17:31:44 UTC, Jens Boos wrote: > > I don't think it would be counter-productive, see e.g. the XN-1. Neon and > argon are noble gases and hence they almost don't interact with getter > material, as far as I know > Yup - I can buy that... Nick -- You received this

Re: [neonixie-l] Used or NOS?

2016-03-16 Thread Instrument Resources of America
; *Sent:* Wednesday, March 16, 2016 8:18 AM *Subject:* Re: [neonixie-l] Used or NOS? As I mentioned in an earlier post today getters are flashed inside of 'VACUUM TUBES' to absorb residual 'OXYGEN' after pump down, and possibly some external R.F. heating of the internal elements to

Re: [neonixie-l] Used or NOS?

2016-03-15 Thread JohnK
[yes, my link included one of those too. Maybe the "see also" is a little buried.] jk - Original Message - From: "Marcin Adamski" <marcin.r.adam...@gmail.com> To: <neonixie-l@googlegroups.com> Sent: Wednesday, March 16, 2016 2:32 PM Subject: Re:

Re: [neonixie-l] Used or NOS?

2016-03-15 Thread Marcin Adamski
net> *To:* neonixie-l@googlegroups.com <mailto:neonixie-l@googlegroups.com> *Sent:* Wednesday, March 16, 2016 8:18 AM *Subject:* Re: [neonixie-l] Used or NOS? As I mentioned in an earlier post today getters are flashed inside of 'VACUUM TUBES' to absorb residual 'OXYGEN' aft

Re: [neonixie-l] Used or NOS?

2016-03-15 Thread JohnK
: Re: [neonixie-l] Used or NOS? As I mentioned in an earlier post today getters are flashed inside of 'VACUUM TUBES' to absorb residual 'OXYGEN' after pump down, and possibly some external R.F. heating of the internal elements to further degas. OXYGEN is extremely detrimental to 'hot cathodes

Re: [neonixie-l] Used or NOS?

2016-03-15 Thread Instrument Resources of America
As I mentioned in an earlier post today getters are flashed inside of 'VACUUM TUBES' to absorb residual 'OXYGEN' after pump down, and possibly some external R.F. heating of the internal elements to further degas. OXYGEN is extremely detrimental to 'hot cathodes', and 'hot filaments', and will

Re: [neonixie-l] Used or NOS?

2016-03-15 Thread Instrument Resources of America
As I understand it, a getter's primary purpose, within a 'VACUUM TUBE' is to absorb an remaining 'OXYGEN' from within the envelope. Ira. On 3/15/2016 10:45 AM, Dekatron42 wrote: Dekatrons use a getter that is flashed and they contain similar gas mixtures compared with Nixies, as I understand

Re: [neonixie-l] Used or NOS?

2016-03-15 Thread Dekatron42
Dekatrons use a getter that is flashed and they contain similar gas mixtures compared with Nixies, as I understand it the getter is there to absorb impurities from the materials used whereas the mercury is there to extend the life of the Nixie as it reduces the sputtering. /Martin On Tuesday,

Re: [neonixie-l] Used or NOS?

2016-03-15 Thread jb-electronics
I don't think it would be counter-productive, see e.g. the XN-1. Neon and argon are noble gases and hence they almost don't interact with getter material, as far as I know. Jens On 3/15/2016 1:23 PM, Nick wrote: Why would they have a getter? An Hg pill that needs to be vaporized, sure. But a

Re: [neonixie-l] Used or NOS?

2016-03-15 Thread Nick
Why would they have a getter? An Hg pill that needs to be vaporized, sure. But a getter? They are used to remove any stray gas molecules given off by the glass or internal structures due to heat & time. Nixies are gassed tubes by definition - a getter would be counter-productive - even during

Re: [neonixie-l] Used or NOS?

2016-03-13 Thread John Rehwinkel
> Nixies are not vacuum tubes - they shouldn't have a getter. Actually, some nixies do have a getter, but it's a different kind of getter than vacuum tubes use, naturally. Most of the ones with getters use "pill" getters, often on the back of the anode, and there's normally no "getter flash"