Chris N4VI either quoted, or wrote:
>philosophy with an amplifier like this would be to run it at 450 to 500
>W. There's precious little to be gained by pushing it to its absolute
Y'know, this really is the truth... if the Centaur, or any amplifier...
doesn't have enough power for you at say... 50% of it's realized output,
the better plan would be to move to a more substantial amplifier... either
that, or you're using too much power, and not enough antenna.
I can fully understand and relate to concerns about low output and high
drive requirements, because without a critical eye, one isn't able to
diagnose problems they'd normally be keen to, so if I thought an amp wasn't
up-to-snuff, that'd be my cue to look around and see if it's doing
something that's causing QRM or a safety problem.
But in the realm of power, I've been using my Centurion on all seven bands,
powering it from 120vac... just like I ran my SB-220. On the low-voltage
tap, amps in this class loose a little dynamic regulation, so they're a
little bit tired towards the top end, but I've got a half-decent set of
antennas, so I rarely go beyond about 350w. Only time I really twist the
screws is when there's a high static level on the two lowest. In that
respect, it seems pointless to have an amp capable of a KW or more, but I'm
sure it'll last a good long time...
73's from KW0D Dave in LeClaire, Iowa