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Re: [Amps] HF and 4cx250b's

To: "jerry" <>, <>
Subject: Re: [Amps] HF and 4cx250b's
From: "DF3KV" <>
Reply-to: DF3KV <>
Date: Thu, 15 Jul 2004 17:29:34 +0200
List-post: <>
> Is there some reason why there seems to be very few HF amps built
> the 4cx250b's? They seem to be cheep and very plentiful.
> I am thinking of building an HF amp using 3 or 4 4cx250b's. Is there
> anything wrong with doing this?

Hi Jerry,

nothing wrong with that, plenty of amplifiers with those tubes  have
been built and used commercially in Europe
Example RFT with the KN1E with 4 parallel tubes and one as driver.
I built one with 3 tubes 30 years ago, it put out clean 1100W


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