Return to the thumbnail page Display/hide file information See next file

Xenon gas filled Thyratron

Xenon gas filled Thyratron

Click to view full size image

Xenon glowing in this thyratron. Thyratrons were the predecessors to silicon thyristors. Often filled with mercury or neon which would remain ionised once triggered by a grid. They have a heated cathode so work as a diode when conducting.

xenon_thyratron.jpg neon_RF.jpg laser_on.jpg co2_laser_a.jpg

Light Information

Light Information

Manufacturer:RTF
Model Reference:S13/30dv

File information

File information

Download: Download this File
Filename:xenon_thyratron.jpg
Album name:tuopeek / misc
Keywords:Miscellaneous
File Size:138 KB
Date added:Apr 10, 2018
Dimensions:1000 x 1415 pixels
Displayed:135 times
Date Time:2018:04:10 21:18:35
DateTime Original:2018:04:10 21:13:51
Exposure Bias:0 EV
Exposure Time:1/60 sec
FNumber:f 3.5
Flash:No Flash
Focal length:18 mm
ISO:12800
Make:NIKON CORPORATION
Model:NIKON D3400
Software:Adobe Photoshop Elements 2.0
White Balance:0
URL:https://www.lighting-gallery.net/gallery/displayimage.php?pos=-145228
Favorites:Add to Favorites
Comments
xelareverse
Sr. Member
****
Offline

Gender: Male
Posts: 291
View Gallery

OVM


xelareverse UCjohSkrTwJJJzpc_r8D3vKw xelareverse
View Profile WWW Personal Message (Offline)
Apr 10, 2018 at 02:51 PM Author: xelareverse
Doesn't this technically make it a light emitting diode?

LED Toobs minus Too equals LED bs

Potato

tuopeek
Newbie
*
Offline

Posts: 5
View Gallery

GLS on Tesla Coil


tuopeek 111967450636623837217 tuopeek1 77334065@N05/
View Profile WWW Personal Message (Offline)
Apr 10, 2018 at 02:56 PM Author: tuopeek
Never thought of it that way. Won't work on 2.5V though.
MissRiaElaine
Hero Member
*****
Online

Gender: Female
Posts: 1042
View Gallery

Mainly the electrical side of things


ATL missriaelaine
View Profile Personal Message (Online)
Apr 10, 2018 at 02:59 PM Author: MissRiaElaine

Never thought of it that way. Won't work on 2.5V though.

Now this is the sort of LED I like

Ria in Aberdeen

I don't disapprove of LED's for domestic and other indoor use, I just don't like them for street lighting.

Globe Collector
Newbie
*
Offline

Gender: Male
Posts: 25
View Gallery

Preserving the Brightest Ideas of Our Age


View Profile Personal Message (Offline)
Apr 10, 2018 at 07:09 PM Author: Globe Collector
I have lots of Thyratrons...one Mullard one I have similar to this is an XR1 3200 5544....the number is a real mouthful!

Actually IS this a Thyratron? ...does not look like it has a "grid", (often a plate with one hole or a few holes in it positioned between the anode and heater).

Manufactured articles should be made to be used, not made to be sold!

dor123
Hero Member
*****
Offline

Gender: Male
Posts: 2271
View Gallery
Other loves are computers, office equipment, A/Cs


View Profile Personal Message (Offline)
Apr 10, 2018 at 11:06 PM Author: dor123
Gas filled thyratrons aren't light emitting diodes, as the light comes from an electrical discharge and not from an electroluminescence of the diode itself like in the case of LEDs.

I"m don't speak english well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the European date format (dd.mm.yyyy).

I hope that LED won't replace all forms of other light

Globe Collector
Newbie
*
Offline

Gender: Male
Posts: 25
View Gallery

Preserving the Brightest Ideas of Our Age


View Profile Personal Message (Offline)
Apr 11, 2018 at 04:46 AM Author: Globe Collector
It is "tongue-in-cheek"...a sort of JOKE dor...a thyratron with its grid zero biased is a diode...and it is emitting light from the plasma inside...so within the definitions of the English words used to describe it...yes, it is a LIGHT EMITTING DIODE.

It probably will not translate into anything meaningful in Hebrew, because the meaning and idiom is lost so don't bother commenting.

Manufactured articles should be made to be used, not made to be sold!

tuopeek
Newbie
*
Offline

Posts: 5
View Gallery

GLS on Tesla Coil


tuopeek 111967450636623837217 tuopeek1 77334065@N05/
View Profile WWW Personal Message (Offline)
Apr 11, 2018 at 11:14 AM Author: tuopeek

I have lots of Thyratrons...one Mullard one I have similar to this is an XR1 3200 5544....the number is a real mouthful!

Actually IS this a Thyratron...does no look like it has a "grid", (often a plate with one hole or a fwe holes in it positioned between the anode and heater).


Yup,this one is definitely has a "grid", I actually fired it to get the picture I have another thyratron with a pool of mercury in it. The heater take 20A and 5 minutes to heat-up so a monster valve. Must fire it up sometime.
Globe Collector
Newbie
*
Offline

Gender: Male
Posts: 25
View Gallery

Preserving the Brightest Ideas of Our Age


View Profile Personal Message (Offline)
Apr 11, 2018 at 05:33 PM Author: Globe Collector
Often the grid is difficult to see because it is hidden inside that cage...the XR1 3200 5544 ...its anode too is hidden so the discharge column is quite difficult to see.

Are you sure the mercury pool one is actually a thyratron and has a heater?

There are two types of these "power valves" that have mercury pool cathodes and no heater, the Ignitron and the Excitron. I have examples of both...but again, they are in the shipping container 30km away.


I also have loads of 866A, (and DQ2) mercury filled rectifiers....you can do a few interesting things with them...like put 25v on the anode, through a light globe or resistor to limit the current to less than one amp...then take the 2.5v heater supply OFF...the glow column below the anode plate then gradually expands, dims and fills the whole bulb before extinguishing.

When you put the heater on...without anything on the anode, they all silver up from the mercury evaporating and redistributing, but as the bulb warms up, they go clear again.


https://www.radiomuseum.org/tubes/tube_xr1-3200.html (If I hypertext this link, it does not work correctly...this seems to be the only picture of an XR1 3200 5544 on the net!)

There is another "whackey" version of it with glass-to-metal seals...I have this variant too...

https://www.radiomuseum.org/tubes/tube_xr1-3200a.html

Manufactured articles should be made to be used, not made to be sold!

tuopeek
Newbie
*
Offline

Posts: 5
View Gallery

GLS on Tesla Coil


tuopeek 111967450636623837217 tuopeek1 77334065@N05/
View Profile WWW Personal Message (Offline)
Apr 12, 2018 at 12:09 PM Author: tuopeek
Wow I would love to fine a large mercury arc rectifier to play with. I once found one of the carbon anode from the legs of one that had been smashed, very sad. I probably missed saving it by a few days. The Mercury Thyratron I have is at http://www.tuopeek.com/valves.html (BT95). The mercury pool is not connected and rolls about inside the envelope, but as you describe silvers up when the heater is started up.
rjluna2
Sr. Member
****
Offline

Gender: Male
Posts: 260
View Gallery

Robert


GoL
View Profile Personal Message (Offline)
Apr 12, 2018 at 02:17 PM Author: rjluna2
Nice web site, Mark

I'll miss the vidicon recording that I have seen on TV show that has videotaped live action.

Pretty, please no more Chinese failure.

tuopeek
Newbie
*
Offline

Posts: 5
View Gallery

GLS on Tesla Coil


tuopeek 111967450636623837217 tuopeek1 77334065@N05/
View Profile WWW Personal Message (Offline)
Apr 12, 2018 at 03:00 PM Author: tuopeek

Nice web site, Mark

I'll miss the vidicon recording that I have seen on TV show that has videotaped live action.


Thanks Robert, I actually need to update parts of it. Yup, vidicon tube hold some records like first televised images from the moon landing and first picture through the solar system all captured by vidicons. Images were not great by today's standard and easily damaged buy pointing them to the sun.
Globe Collector
Newbie
*
Offline

Gender: Male
Posts: 25
View Gallery

Preserving the Brightest Ideas of Our Age


View Profile Personal Message (Offline)
Apr 12, 2018 at 06:49 PM Author: Globe Collector
I have nearly all those devices in your web site except the coronatron, now I see the BT95, I have one too, plus a whole out of other BTH ones, like the smaller BT37. I see inj that first picture of all the valves there is an 810 or 811 in the upper left corner. The big kenotron vacuum diode, I have a big triode that looks similar, a Philips TBA 4 2000K.

I also have Philips PL105 a common thyratron in the '50's

I probably have about as many valves as I have lamps...most of my bigger valves come from Technical Colleges and Universities when they had BIG chuck outs.

An Ignitron or Excitron has about ten times the amount of mercury as a BT97.

I'll have a look in the 'net to see of the word, "Excirton" brings up anything....I don't really think it will though. It is amazing just how these things get forgotten.

AMAZING.....JUST ONE LISTING...A valve collector...this example looks nothing like mine.


OH...Here's another...showing the exact same device in use.

Manufactured articles should be made to be used, not made to be sold!

wishus
Newbie
*
Offline

Gender: Male
Posts: 39
View Gallery


View Profile Personal Message (Offline)
Apr 13, 2018 at 11:07 AM Author: wishus
Wow. I have nothing anywhere near your impressive examples.
About the largest gas 'Light Emitting Diode' I have are a pair of 3B25 half-wave xenon gas rectifiers. Oh, and a few type 83 full-wave mercury vapour rectifiers, not even an 866A!

Interested mainly in discharge lighting (mercury, sodium, neon) and also old and unusual incandescents.

tuopeek
Newbie
*
Offline

Posts: 5
View Gallery

GLS on Tesla Coil


tuopeek 111967450636623837217 tuopeek1 77334065@N05/
View Profile WWW Personal Message (Offline)
Apr 13, 2018 at 12:11 PM Author: tuopeek
No end the the electrical glassware that can be collected, only house space.
rjluna2
Sr. Member
****
Offline

Gender: Male
Posts: 260
View Gallery

Robert


GoL
View Profile Personal Message (Offline)
Apr 13, 2018 at 02:29 PM Author: rjluna2
I think I may have 816 Mercury Vapor Rectifier tube in my collection stashed

Pretty, please no more Chinese failure.

Globe Collector
Newbie
*
Offline

Gender: Male
Posts: 25
View Gallery

Preserving the Brightest Ideas of Our Age


View Profile Personal Message (Offline)
Apr 13, 2018 at 09:36 PM Author: Globe Collector
Yes, I (sadly) have some 3B25's too...they were used in an old NMR spectrometer power supply at Uni, when they trashed it, I got all the valves plus the spares...so I have quite a few 3B25's.

I am quite curious as to how many lamp collectors also collect valves....more than you would think, I reckon.

I use this site quite a bit...I also have a few they don't, like a common old garden variety 6CG7, but they have LOTS that I don't.

Do you have any Image Orthocons Mark?

I will try to find some footage filmed through an Image Orthocon Camera...it is totally different from a Vidicon or Plumbicon camera.

Because of the odd way the electron beam in the Image Orthocon is "turned back" at the internal screen, the resolution is rather low and if the tube is optically overloaded by a bright source, a black halo appears around the area of overload.

I found this old 1968 footage of One Man Band, Jessie Fullerton filmed with an Orthocon camera...note the bright reflection from his guitar at 3.20 and how it has a dark area around it.....classic Orthicon overload response.

The Marconi Mk-IV is a classic example of an Orthocon camera.

Manufactured articles should be made to be used, not made to be sold!

tolivac
Sr. Member
****
Offline

Posts: 475
View Gallery

View Profile Personal Message (Offline)
Apr 13, 2018 at 10:58 PM Author: tolivac
I have some 4C-35 Hydrogen thyratrons from the old CEMCO transmitters-those drove an ignitron tube that was part of the HV crowbar circuits.The crowbar was tripped when there was a HV overload in the transmitter.You knew it when the "T" unit or crowbar tripped-lights in the building would dim and the 4160V breaker for that transmitter would trip.You tested the crowbar with the HV off and watched the thyratron tube flash.also have a couple of those ignitron tubes-those were another predesscor to the SCR.
tuopeek
Newbie
*
Offline

Posts: 5
View Gallery

GLS on Tesla Coil


tuopeek 111967450636623837217 tuopeek1 77334065@N05/
View Profile WWW Personal Message (Offline)
Apr 14, 2018 at 03:12 PM Author: tuopeek
[quote author=Globe Collector link=#msg459730 date=Apr 13, 2018 at 09:36 PM]
Yes, I (sadly) have some 3B25's too...they were used in an old NMR spectrometer power supply at Uni, when they trashed it, I got all the valves plus the spares...so I have quite a few 3B25's.

I am quite curious as to how many lamp collectors also collect valves....more than you would think, I reckon.


Do you have any Image Orthocons Mark?

No don't have an Orthocons tube. They are quite big. I also think I will only see ionoscope tubes in museums as they must be incredibly rare now.
I have collected valves off and on during the years, but have always liked keeping CRTs, they are a bit big and take up a lot of space. Mostly all out of production now.
© 2005-2018 Lighting-Gallery.net | Powered by: Coppermine Photo Gallery