They have completely different sockets, better price that to see if you can
afford it. The 5000 will play at 100 MHz, in the proper version of the socket.
For what that's worth to you....
also, depending on your loadline, if you need higher cathode current on the RF
cycle peaks, then you have to select the right tube, or suffer shorter life,
and having to crank up the filament too high. Thats covered in Care and Feeding
I believe.
73
John
K5PRO
>
> Message: 6
> Date: Tue, 16 Feb 2010 18:54:21 -0600
> From: donroden@hiwaay.net
> Subject: [Amps] 3000/5000
> Cc: amps@contesting.com
> Message-ID: <20100216185421.53866q6d7yxs3ewt@webmail.hiwaay.net>
> Content-Type: text/plain; charset=ISO-8859-1; DelSp="Yes";
> format="flowed"
>
> Quoting "Cecil Acuff" <chacuff@cableone.net>:
>
> >
> > ----- Original Message ----- From: "Roger" <sub1@rogerhalstead.com>
> >
> >> 4CX3000A filament 9.0VAC @ 41.5A = 373.5 Watts
> >> 4CX5000A filament 7.5VAC @ 75A = 562.5 Watts
> >>
> >>
> >> Tubes with handles.
>
>
> 4CX3000s vs 4CX5000s at 4KW TPO ........... advantages either way
> other than 200 watts of additional filament heat ?
>
>
> Don R
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