[Amps] The Y series

[2]

Most of the cold-war, real-secrety Y series / black-project tubes are 
fairly similar to the ordinary tube they resemble.  For instance, the 
Y-448 looks like a 4-1000A/8166 and it acts like a 4-1000A.  The 
difference is more emission, more fil amps and for sure way more $$$$$$$. 
   Meanwhile, the Russkys were building pretty good tubes at Svetlana's 
factory in St. Petersburg.  One advantage of Svetlana ceramic tubes was a 
better metal-ceramic seal resulted from adding a trance of manganese to 
the ceramic.  [purplish tint]

>I'm sure someone knows, possibly an Eimac Spy, but I'd like to know where I 
>might look for a table or chart, which might give the conversions of the 
>Y-series of tubes to the 4cx versions. Eimac won't, and I expect they 
>powered 
>the C.I.A.'s handhelds until they found out that kind of power will give you 
>brain cancer. I thank you all in advance.
>Paul...N2TZV


-  R. L. Measures, a.k.a. Rich..., 805.386.3734,AG6K, 
www.vcnet.com/measures.  
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