Re: [TCML] Handmade Vacuum Tubes Video: Build A Better 811A Mousetrap?

[Sfxneon@xxxxxxx]

Hi Neal,
 
Simple explanation: It's a small piece of material that has an affinity for 
oxygen when it is heated, that is placed inside of vacuum tubes . It's the 
little thingy usually in the bottom of a tube that looks like a doughnut or a "U" 
shaped piece of wire with the getter material stretched across the top. After 
the tube is pumped and sealed, an induction heater is brought up to the side 
of the tube and placed next to the getter, causing it to get red hot and 
activate the getter material. It then scavenges the last few oxygen molecules from 
inside the tube and traps them. It can also cause the silver or rainbow 
mirroring around the getter, which also acts to trap other molecules between the 
silvering and glass. 
 
Tony Greer
*************
 
In a message dated 9/12/2008 5:41:59 PM Central Daylight Time, 
neal@xxxxxxxxxxxxxxxx writes:

Hi all,
Although I've yet to attempt a VTTC (let alone make my own tube!) I've been 
curious about tubes, so I've been following along this thread.
I'm just wondering; what the heck is a "getter"? I saw the link, so I 
thought, ok, now maybe I can figure it out, but that wasn't any help. Thanks 
in advance for the info.

Neal. aka "ThreadKiller" :) (ask me off list if you're curious)

Subject: Re: [TCML] Handmade Vacuum Tubes Video: Build A Better 811A 
Mousetrap?


> Ed Phillips wrote:
>>
>> You can buy the getters."
>>



**************Psssst...Have you heard the news? There's a new fashion blog, 
plus the latest fall trends and hair styles at StyleList.com.      
(http://www.stylelist.com/trends?ncid=aolsty00050000000014)
_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla