75th anniversary of Metal tubes

[Ron W4RON]

---- Nigel Holmes <Holmes.Nigel at ABC.NET.AU> wrote: 
> RCA released its Metal series on 1st April 1935. 


If it was today everyone would assume it was an April Fools joke...

--
73, Ron w4ron
http://radioheaven.homestead.com/menu.html
http://charlottearc2010.homestead.com/index.html  

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