Looking for Amperex 8509 VHF Power tube data sheet

[Bob And Bettina Groh]

Ladies and gentleman,

I am looking for a data sheet (actually copy thereof) for an Amperex 
8509 RF vacuum tube. Believe this is a VHF power tube. Found one in my 
'collection' and would like to identify it a little more precisely. I 
think (dangerous as that sometimes is) that I used this way back in the 
early 70's when I was doing some design work on a commerical VHF FM 
radio. Don't remember any more than that. I have tried 'googling' it and 
find sources for the tube but no data sheet info. All leads most 
gratefully received.

73 de WA2CKY
Bob Groh

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