I> In a message dated 7/17/2007 7:48:51 P.M. Eastern
> email@example.com writes:
> Converting the SB-200 to a 6M monobander is simple and
> straightforeward when
> basic design principles are followed. Ive been doing those
> conversions since
> the late 60's and it is completely stable and repeatable.
> Power output and
> efficiency is the same or better than a good stock unit
> on say 20M.
> Carl, Indeed, the word on the street is that the 572B is
> not good to 6
> meters, but as you say if it is handled properly it can be
> made to be rather
> stable and the power in the 700 watts range easily. I
> haven't really seen a
> published article that really "gets it right" however.
I think you fellows are missing the point entirely. There is
a BIG difference between "I can make it work" and "it is a
I can make a sweep tube work on six meters, but it doesn't
mean it is a good choice in tubes for six meters.
Using a tube right at the upper limit frequency isn't the
best idea, unless you just have no other choice or are
trying to prove a point.
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