Re: [neonixie-l] Neon size limitations?

of America Sent: dinsdag 29 april 2014 5:21 To: neonixie-l@googlegroups.com Subject: Re: [neonixie-l] Neon size limitations? Hello John, I do not know all of the in's and out's of it. But I do recall that a group of early television collectors had tried in vain to preserve several of

RE: [neonixie-l] Neon size limitations?

[mailto:neonixie-l@googlegroups.com] On Behalf Of Instrument Resources of America Sent: dinsdag 29 april 2014 5:21 To: neonixie-l@googlegroups.com Subject: Re: [neonixie-l] Neon size limitations? Hello John, I do not know all of the in's and out's of it. But I do recall that a group of early

Re: [neonixie-l] Neon size limitations?

About a decade ago I made some incandescent light bulbs out of surplus labware for a client. I made my prototypes with 250 ml e flasks and the final bulbs with 2,000 ml flasks. I had great luck working with the pyrex glass without a cooling oven. Two of the three finals burned for over 200 hours

RE: [neonixie-l] Neon size limitations?

Well, none of my hobbies are "cheap". Energy efficient either! -- 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 neonixie-l+unsubscr...@googlegroups.com. To post to

Re: [neonixie-l] Neon size limitations?

eric Sorry for the late reaction, but I my provider was down [e] -Original Message- From: neonixie-l@googlegroups.com [mailto:neonixie-l@googlegroups.com] On Behalf Of Instrument Resources of America Sent: dinsdag 29 april 2014 1:42 To: neonixie-l@googlegroups.com Subject: Re: [neonixie-l]

RE: [neonixie-l] Neon size limitations?

@googlegroups.com Subject: Re: [neonixie-l] Neon size limitations? Also!!! It is my understanding from being a member of T.C.A. Tube Collectors Association, another Yahoo group, that once the 'cathode' of the gun is exposed to 'air' it is DESTROYED, and can NOT be used agai

Re: [neonixie-l] Neon size limitations?

[revised edition of Materials Technology for Electron Tubes], Walter H > Kohl, 1960,Reinhold. > > John K. > > > - Original Message - From: "Instrument Resources of America" > > To: > Sent: Tuesday, April 29, 2014 9:11 AM > Subject: Re: [neonixie-l] Neo

Re: [neonixie-l] Neon size limitations?

tthew Smith" To: Sent: Tuesday, April 29, 2014 12:56 PM Subject: Re: [neonixie-l] Neon size limitations? Quoth JohnK at 2014-04-29 11:37 ... ... What is the chemical after later exposure to air? And is oxygen the problem? (And does the problem apply to more recent CRTs.) Just pondering

Re: [neonixie-l] Neon size limitations?

On Tuesday, 29 April 2014 09:37:15 UTC+1, zapro wrote: > > Drill a 1mm hole in the anode cap. It's 100% safe, as it's metal - so no > glass cracking. > I knew I'd being doing something wrong - used to just hit the neck with a #4 iron... Nick -- You received this message because you are subs

Re: [neonixie-l] Neon size limitations?

Den 28/04/2014 kl. 22.47 skrev Matthew Smith : > Quoth Tidak Ada at 2014-04-29 06:13 ... >> I once opened a 50 cm B/W picture tube to make a lamp of it. I carefully >> packed the tube in thick blankets and then filed off the exhaust nipple. >> About one minute of hissing and the pressure was equil

Re: [neonixie-l] Neon size limitations?

resistance/impedance years ago and have a lot of cathode info packed away. I am off to browse the info Ira pointed at... John K. Australia - Original Message - From: "Matthew Smith" To: Sent: Tuesday, April 29, 2014 12:56 PM Subject: Re: [neonixie-l] Neon size l

Re: [neonixie-l] Neon size limitations?

Quoth JohnK at 2014-04-29 11:37 ... ... What is the chemical after later exposure to air? And is oxygen the problem? (And does the problem apply to more recent CRTs.) Just pondering whether it might be possible to broach the vacuum under a gas flood (like Ar/CO2) to mitigate damage. -- Matt

Re: [neonixie-l] Neon size limitations?

s [revised edition of Materials Technology for Electron Tubes], Walter H Kohl, 1960,Reinhold. John K. - Original Message - From: "Instrument Resources of America" To: Sent: Tuesday, April 29, 2014 9:11 AM Subject: Re: [neonixie-l] Neon size limitations? Also!!! It is

Re: [neonixie-l] Neon size limitations?

Technology for Electron Tubes], Walter H Kohl, 1960,Reinhold. John K. - Original Message - From: "Instrument Resources of America" To: Sent: Tuesday, April 29, 2014 9:11 AM Subject: Re: [neonixie-l] Neon size limitations? Also!!! It is my understanding from being a membe

Re: [neonixie-l] Neon size limitations?

Also!!! It is my understanding from being a member of T.C.A. Tube Collectors Association, another Yahoo group, that once the 'cathode' of the gun is exposed to 'air' it is DESTROYED, and can NOT be used again.Ira. On 4/28/2014 4:18 PM, NeonJohn wrote: On 04/28/2014 04:47 PM, Matthew

Re: [neonixie-l] Neon size limitations?

On 04/28/2014 04:47 PM, Matthew Smith wrote: > Quoth Tidak Ada at 2014-04-29 06:13 ... >> I once opened a 50 cm B/W picture tube to make a lamp of it. I carefully >> packed the tube in thick blankets and then filed off the exhaust nipple. >> About one minute of hissing and the pressure was equili

Re: [neonixie-l] Neon size limitations?

Quoth Tidak Ada at 2014-04-29 06:13 ... I once opened a 50 cm B/W picture tube to make a lamp of it. I carefully packed the tube in thick blankets and then filed off the exhaust nipple. About one minute of hissing and the pressure was equilibrated. No danger at all! Aha! I wanted to get the ele

RE: [neonixie-l] Neon size limitations?

[mailto:neonixie-l@googlegroups.com] On Behalf Of gregeb...@hotmail.com Sent: maandag 28 april 2014 18:33 To: neonixie-l@googlegroups.com Subject: Re: [neonixie-l] Neon size limitations? But, unlike a picture tube, you could put internal support structures within the "tube" which would make it u

Re: [neonixie-l] Neon size limitations?

Common nixie tube envelopes have advantage of egg-like shape, the stress is uniformly distributed in the glass.. Picture tubes have one side flat what makes the shape more prone to implosion.. Also proper annealing will be important. Good remark anyway! Dalibor 2014-04-28 18:32 GMT+02:00 gregeb.

Re: [neonixie-l] Neon size limitations?

But, unlike a picture tube, you could put internal support structures within the "tube" which would make it unnecessary to have really thick glass in specific areas. Then it becomes a matter of how you would glass-cast it and insert the cathodes. A 7-segment giant nixie would be relatively "easy

Re: [neonixie-l] Neon size limitations?

On 04/28/2014 08:05 AM, B Otto wrote: > Reading the thread on "fake gigantic nixies" got me thinking about > the possibilities or REAL gigantic neon applications. Is there a > practical limit on how large a neon indicator could be? Using > traditional methods, would it be possible to make a neon

Re: [neonixie-l] Neon size limitations?

inal Message- > From: neonixie-l@googlegroups.com [mailto:neonixie-l@googlegroups.com] On > Behalf Of B Otto > Sent: maandag 28 april 2014 14:05 > To: neonixie-l@googlegroups.com > Subject: [neonixie-l] Neon size limitations? > > Reading the thread on "fake gigantic nixies&

RE: [neonixie-l] Neon size limitations?

Message- From: neonixie-l@googlegroups.com [mailto:neonixie-l@googlegroups.com] On Behalf Of B Otto Sent: maandag 28 april 2014 14:05 To: neonixie-l@googlegroups.com Subject: [neonixie-l] Neon size limitations? Reading the thread on "fake gigantic nixies" got me thinking about the pos

[neonixie-l] Neon size limitations?

Reading the thread on "fake gigantic nixies" got me thinking about the possibilities or REAL gigantic neon applications. Is there a practical limit on how large a neon indicator could be? Using traditional methods, would it be possible to make a neon glow lamp from say a five gallon carboy?