[Towert7]

Hi all.

I was wondering what part of the 6L6GC people refer to as being a 'black plate' or a 'grey plate'. I'm not sure what part they are talking about.

Can anyone explain this?

 

[alwayshungry]

They are referrring to the color of the metal plate that is inside of the glass tube.
See explanation section here.

 

[nikongod]

They are talking about the plate (chuckle) its the huge metal thing around everything else.

Black plate tubes often (usually) have lower distortions than grey-plate tubes.

You will also see descriptions such as "solid plate" and "mesh plate" in some tubes. They mean exactly what they say. Solid plate GENERALLY indicates a plate with no holes in it when the most common type of that tube has some holes (6l6 generally has a few big holes in the plate....) mesh plate ORIGINALLY meant the plate was actually made of woven mesh like in a window-screen, but now generally means perforated sheet-metal.

 

[Towert7]

Thank you very much Nikongod and alwayshungry!