[Amps] lots of 4CX10,000Ds

[John D'Ausilio]

heh .. you should ask him if they pull those tubes at regular
intervals for PM :) but I'd imagine they rebuild em ..

de John/W1RT


On Mon, 7 Feb 2005 14:49:59 -0700, John T. M. Lyles <jtml at lanl.gov> wrote:
> Ham friend of mine is the RF engineer for the Haarp site. He travels
> back from Northern VA to Alaska frequently, and also to Continental
> Electronics in Dallas. He can pull up TX stats and meters remotely. I
> have a Haarp QSL card on the wall here, it says 48 phased arrays to
> produce 960 kW ERP from 2.8 to 10 MHz. I heard them on HF (near 5
> MHz) one night, very strange modulation of tones. However, they are
> doing an upgrade with more transmitters and antennae.
> 
> http://www.haarp.alaska.edu/
> 
> I believe he told me that they use a pair of 4CX10,000D tetrodes in
> each rig, and have 48 of these rigs running. More coming i believe.
> Continental has made a lot of rigs for them, and CPI/Eimac, a lot of
> tubes.
> 73
> John
> K5PRO
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