[Yaesu] ft 901/902 front end characteristics

[Larry Strain]

Does anyone know of any technical reports on the front end charcteristics of
the receiver on the FT 901/902 series?  They were known to have an extremely
high isolation from IMD.  Of course they also used tube type first RF
amplifiers.  Some of us are considering the design of a tube type TR switch
or isolation amp using the Yaesu circuitry.



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