Author Topic: Vacuum tubes  (Read 1813 times)

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Offline Simon123

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Vacuum tubes
« on: November 02, 2014, 12:35:14 am »
Hello!

I wonder how are called those screw type socket (like lightbulb vacuum tubes).
They have ball shaped envelope and components are horizontal.
I think they were made by philips but i'm not shure.
Thanks
 

Offline atferrari

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Re: Vacuum tubes
« Reply #1 on: November 02, 2014, 01:25:17 pm »
Any picture that you could show?
Agustín Tomás
In theory, there is no difference between theory and practice. In practice, however, there is.
 

Offline Simon123

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Re: Vacuum tubes
« Reply #2 on: November 02, 2014, 02:33:28 pm »
Yea
http://media-cache-ec0.pinimg.com/236x/39/68/3b/39683b0cd2633c21090eaf3fa8ae8f8c.jpg like that but screw socket
Im actualy searching a website(i lost link), that had nice explanation of triode and cutoff showing internals
 

Offline pardo-bsso

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Re: Vacuum tubes
« Reply #3 on: November 02, 2014, 02:48:55 pm »
 

Offline Simon123

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Re: Vacuum tubes
« Reply #4 on: November 04, 2014, 07:37:54 pm »
Thanks!
 

Online vk6zgo

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Re: Vacuum tubes
« Reply #5 on: November 05, 2014, 05:48:17 am »
I'm very dubious about there ever being vacuum tubes in such a configuration.
There aren't enough connections for a triode,or even a vacuum diode.

I have seen gas filled rectifiers in a similar package.
The particular kind I knew were called "Tungar" rectifiers,& were often used in battery chargers.
They didn't use a thermionic cathode,so only needed the two connections available with an Edison screw base.
I take it all back about the Tungar---they did have a filament & a separate anode, :-[
« Last Edit: November 05, 2014, 05:54:35 am by vk6zgo »
 


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