Anatomy of an EL34

[Colas LeGrippa]

here.s some pics of a JJ EL 34 showing clearly the glas envelope, cathode ( by the watch ) control grid screen grid and suppressor grid tied to the getter ( the ring ) and finally the plate. All those components are inserted  in the plate so that the flow of electrons could leave the cathode , cross the 3 grids  and  arrive to the plate. When you look at a power tube, you only see the plate. BTW, don't try taking off a hot tube with a wet towel unless you want to study the anatomy of a tube.

Colas

[Colas LeGrippa]

read this interesting article on how tubes work.


http://mesaboogie.com/US/Smith/ClassA-WebVersion.htm

[kagliostro]

Ciao Colas

Very good stuff, thanks for posting

I like this part very much 



Franco

[Colas LeGrippa]

Ciao Franco !