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Re: [Amps] Looking for a design for a single 4cx250b tube on50 Mhz-six m

To: amps@contesting.com
Subject: Re: [Amps] Looking for a design for a single 4cx250b tube on50 Mhz-six meters.
From: Chris Pedder <chris@g3vbl.co.uk>
Date: Tue, 12 Oct 2004 20:14:11 +0000
List-post: <mailto:amps@contesting.com>
At 18:51 12/10/2004, you wrote:
The manual claims that a single 4CX250B will produce 600 watts peak output. It has unregulated bias supplies as well.
I wonder if that is figuring peak voltage squared divided by resistance rather than PEP value.


73
Bill wa4lav

I use, though not very often these days, a pair of 4CX250Bs in AB1 passive grid. On 80-10m they are good for about 550 watts pep out with reasonable linearity. 35 years ago there were cheap pulls available here, which made them an attractive proposition, especially with out power limit.


Chris


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