This comment is for the QRO HF-3kDX http://www.qrotec.com/
Sorry. Rich KL7RA
>
>Hi Jim
>
>I have a multi-op contest station and use one for the twenty
meter
>position. It has cranked a lot of Q's with no failures.
>
>Casual operating, I prefer it as it's quite and quick to tune by
>the
>numbers. I also like it for the muli op contests as it will shut
>down
>when someone switches the antenna when the voice keyer is
>running.
>
>It's not as fussy about swr or AC input power as my Alpha.
>
>It's a pretty big box, over 100 lbs., seems well made, super band
>switch. P-D transformers, ebs, vacuum relays, overcurrent, etc.
>
>One feature I demonstrate, 1500 watts out CW you have no
>indication
>of power. No hum, vibration, or screen current. Nothing seems to
>be
>working hard except the Bird watt meter.
>
>Fifty or so watts for 1500, and into a dummy load will pin a Bird
>with a
>2.5 kW slug. It has an extra (empty) socket beside the 4cx1600.
>The fil
>and plate xfmers and cooling have the head room, but I assume you
>would need to change the output relay and maybe the Q a little.
>That
>would give you an amp that would last forever, but I doubt it
>really
>needs it.
>
>73 Rich KL7RA
>
>
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>
>
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