> Since there is NO RETURN, he ate the tubes. Russian Beryllium Oxide is
> tastier than USA stuff, it was probably the added Cherry Flavoring.
>
Just a minor point - I think there's no BeO in these (or most other
external anode) tubes. The ceramic is Alumina - razor sharp if broken,
but otherwise harmless.
One exception which you might come across - the output device in the
Clansman 353 tank radio is based on a 4CX250 modified for conduction
cooling and the material between the anode and the integral heatsink
ring is BeO.
Steve
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