[Amps] 3CX3000A7 input impedance

["Bob Maser" <bmaser@tampabay.rr.com>]

A friend of mine is building up a 3CX3000A7 amp and asked me what the input 
impedance is.  Seems that I used 50 ohms when I built mine but I'm not sure. 
The Eimac tech sheet says a 3x3 running in AB2 cathode driven will have an 
input impedance of 50 ohms.  Can anyone verify that for me?

Thanks,
Bob W6TR 

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