Too bad the 4-CX1600B is no longer available. Even "The Handbook" still has
circuits using it although I don't think they had one that covered the
whole range at one time.
Roger (K8RI).
> Take a look at K5AM's 4CX1000A amp, built in the 80's, I think. Key
> elements of the design include a passive, grid driven design which
> eliminates much of the input circuit. But for this you are looking at a
> tetrode rather than a triode like the 8877. Possibly, a 4CX1500B would be
> a better tube to consider.
>
> Good luck on such a challenging project.
>
> 73, Dennis W0JX/8
>
>
>
>
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