[TenTec] Ten-Tec 411 Centaur Amp Problem

[Ken Brown]

>  The problem of mismatch is often the result of the use of two or more finals in the amplifier and their resulting parallel input impedance, and the use of a solid state driver with a non tunable final transmitter stage.
And the failure to include an input tuned circuit to transform the input 
impedance to 50 ohms, so that any length of coax would work equally well.

DE N6KB