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Re: [Amps] 3CPX vs 3CX tubes

To: amps@contesting.com
Subject: Re: [Amps] 3CPX vs 3CX tubes
From: Steve Thompson <g8gsq@eltac.co.uk>
Date: Sat, 21 Oct 2006 07:31:41 +0100
List-post: <mailto:amps@contesting.com>

Gudguyham@aol.com wrote:
> Hi, Does anyone know with any certainty the difference between a 3CPX and a  
> 3CX tube?  Checking the Eimac data in reference to a 3CPX800A7 vs a  3CX800A7 
> it shows that a 3CX800A7 and a 3CPX800A7 both can be used in linear  
> operation.  As far as the 3CPX1500A7 vs the 3CX1500A7 it does NOT show  usage 
> of the 
> 3CPX in linear operation, therefore, could the 3CPX1500A7 be  substituted  
> into 
> an AL-1500 or similar amp without any caveats?  

We ran a 3CPX1500 in a 2m contest station for 15 years or so - it gave 
excellent linearity.

Steve
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