Steve,
That's what my Henry runs (4kV SSB/3kV CW, no load). Under load, it drops to
something like 2800 & 3700.
And I've seen over 2k with just over 100W input. I now have a rig that will
drive it with 150W, but I have yet to try it. I can send you some pics of the
amp's HV meter & RF Applications VFD power meter, if you like. I have no
doubts that the tube is good for 1kW each (ask Ameritron about their AL-80B).
Joe, N3JI
sccook1@cox.net wrote:
Morning all,
Was thinking about upgrading my Henry 2K-4 to a 4A configuration with the
CW/SSB switch. Was also thinking about puting in a transformer with two
secondary voltages. I have seen amps running a pair of 3-500Zs with all kind of
plate voltage schemes -- some running CW plate voltage as low as 2100 V no-load
and as high as 4KV for SSB no-load.
What would be a suitable voltage to shoot for for CW and SSB? 3000/4000? Less /
More?
Your thoughts?
Steve (WG7K)
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