[AMPS] FS: two 3-400Z tubes

[measures]

>
>Have Two Eimac 3-400Z tubes for sale. Both have full
>output.. They came out of a Henry 2K2. They were 3 years
>old when I replaced them with a new set of 3-500Z,  the 
>3-400Z have almost the same output.
>
There is no difference in peak envelope power between the 3-500Z and the 
3-400Z because they use identical filaments.  The difference is in the 
grid.  3-400Zs have higher mu so they are about 15% easier to drive to 
full output.  

cheers, Boyd

-  Rich..., 805.386.3734, www.vcnet.com/measures.  
end


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