Whats interesting is that if you look at the Eimac published data on the
4CX10000D running at 1350 volts on the screen, the 3rd order IMD
figure is close or equal to the 4CX10000J's. This data comes from Care
and Feeding, the old edition. Considering that you need a higher
filament current transformer i would say its advantages are small
compared to the readily available D version. However if you picked them
up at a cheap price one would never say no! The 4CX600J or 4cx350FJ
would make a super driver for this J rated bottle. However it would be
a insult to drive any of these tubes with the any of the current model
ham model transceivers. The Rockwell HF 8010A would be a superb low IMD
driver match for these excellent tubes..
Craig
VK3HE
Peter Voelpel wrote:
> All the J-types are low distortion, gain of both is about 20db
>
> 73
> Peter, DF3KV
>
> -----Original Message-----
> From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com] On
> Behalf Of Joe Subich, W4TV
> What are the differences between the 4CX1000J and 4CX10000D -
> particularly to explain the 10 KW vs. 15 KW output difference
> in the "normal operation" figures on the Eimac short form
> catalog (www.cpii.com/eimac)? Of course, with a listed gain
> of 4.5, it would seem to take 2500 W or so to drive either of
> them to their full capability ...
>
>
>
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>
>
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