Yes. You can look here too:
www.g8wrb.org/data/Svetlana/pdf/3CX3000A7.pdf
73 SM2EKM
--------------------
Phil Clements wrote:
> Subject: [Amps] 3CX3000A7 input impedance
>
> 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
>
> I can verify that, Bob. I am running a 3X3 on 160 meters here, and I
> designed the input Pi-Net for 50 ohms in and out, with a Q of about 3-5, or
> so. The VSWR is 1:1 across the band.
>
>
> ((((73))))
> Phil, K5PC
>
>
>
,
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