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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