Blue Tubes the glow - diyAudio
Go Back   Home > Forums > Amplifiers > Tubes / Valves

Tubes / Valves All about our sweet vacuum tubes :) Threads about Musical Instrument Amps of all kinds should be in the Instruments & Amps forum

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 4th July 2002, 11:14 PM   #1
jleaman is offline jleaman  Belgium
Banned
 
Join Date: Apr 2002
Send a message via AIM to jleaman
Default Blue Tubes the glow

CAn any one post a link to a tube amplifier with the blue tubes glowing you know the ones that look like lightbulbs and glow that pritty blue..

Thanks

jason
  Reply With Quote
Old 4th July 2002, 11:23 PM   #2
Duo is offline Duo  Canada
diyAudio Member
 
Duo's Avatar
 
Join Date: Jun 2002
Location: Victoria, BC, Canada
Send a message via ICQ to Duo
Hmm, I'm not sure of links, but try Cary Audio...

The blue tube are voltage regulators that have either xenon or krypton gas inside them... The most likely one are krypton but that is more purple/neon colored than xenon, which is a deep bright blue and is also used in camera flashes and strobes of other sorts. Some blue tubes are also thyratrons, they are filled with xenon and are arranged inside with a grid and plate and cathode with a filament, it works the same way as an SCR in SS electronics in that the grid voltage must come to a certain level to ignite the gas and it won't unignite until plate current is reduced to a level too low to sustain emission from the cathode from the cathode.

EDIT: Also, if you have blue light emission from a regular tube
such as a triode or pentode in radio or amplifier, it is gassy, in other words, the vacuum in the tube is not pure and there is enough gas to become conductive at the operating voltage of the
tube and reduces performance...
  Reply With Quote
Old 4th July 2002, 11:37 PM   #3
jleaman is offline jleaman  Belgium
Banned
 
Join Date: Apr 2002
Send a message via AIM to jleaman
Default ok then purple blueish

ok purle blueish

http://web.vip.hr/pcb-design.vip/pic-43.jpg

ive seen amplifiers with this example ofcolour but i cant find the link.. it was a nice amp too but the tubes were way bigger

this is To my gues a voltage regulater as you said

J'
  Reply With Quote
Old 4th July 2002, 11:46 PM   #4
Duo is offline Duo  Canada
diyAudio Member
 
Duo's Avatar
 
Join Date: Jun 2002
Location: Victoria, BC, Canada
Send a message via ICQ to Duo
Either someone edited that pic to look that way, or someone has the gassiest tube in the world... If you look closely, you can see the usual parts of the tube looking like an audio tube or something, so it certainly wouldn't be a regulator. Also, I've seens a lot of tubes (gassious, redulator, thyratron, mercury arc rectifiers, etc...) but I've never seen any boil that brightly even under everload current conditions!
  Reply With Quote
Old 4th July 2002, 11:53 PM   #5
jleaman is offline jleaman  Belgium
Banned
 
Join Date: Apr 2002
Send a message via AIM to jleaman
well you sould email him and call him a liar or you can ask him but im sure that it is real also im still looking for pics if i find one ill post it


J'
  Reply With Quote
Old 5th July 2002, 12:20 AM   #6
Duo is offline Duo  Canada
diyAudio Member
 
Duo's Avatar
 
Join Date: Jun 2002
Location: Victoria, BC, Canada
Send a message via ICQ to Duo
well, I must state another point... How on earth should the tube glow at all if there are no connections to it's board??? Or is the room full of high power microwave energy(in that case, it would glow that brightly )
  Reply With Quote
Old 5th July 2002, 12:21 AM   #7
jleaman is offline jleaman  Belgium
Banned
 
Join Date: Apr 2002
Send a message via AIM to jleaman
LOl i was wondering that too i thnk that he put that paper there so you cant see the wires..
  Reply With Quote
Old 5th July 2002, 12:23 AM   #8
jleaman is offline jleaman  Belgium
Banned
 
Join Date: Apr 2002
Send a message via AIM to jleaman
if yuo look close youll see them small wires..
  Reply With Quote
Old 5th July 2002, 12:26 AM   #9
Duo is offline Duo  Canada
diyAudio Member
 
Duo's Avatar
 
Join Date: Jun 2002
Location: Victoria, BC, Canada
Send a message via ICQ to Duo
well, I do see what you mean, but I stil doubt he'd go to all that trouble to drill a hole in the table and lay down a cloth and run the board right there in the open without and chassie or support whatsoever... Hmmm, maybe I just should email him and find out for sure!
  Reply With Quote
Old 5th July 2002, 12:27 AM   #10
jleaman is offline jleaman  Belgium
Banned
 
Join Date: Apr 2002
Send a message via AIM to jleaman
good plan or you can look close and see the wire : O )
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Do Sweep tubes Glow Blue? wrenchone Tubes / Valves 26 20th July 2009 10:32 PM
blue glow on one channel wicked1 Tubes / Valves 10 29th April 2008 01:20 AM
New WE 300b's blue glow TubeHound Tubes / Valves 26 31st March 2003 01:22 PM
EL34 Blue GLow stigla Tubes / Valves 1 27th December 2002 05:06 AM


New To Site? Need Help?

All times are GMT. The time now is 02:07 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2