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Re: [Amps] EIMAC 3-400 vs. 3-500 how to ID??

To: "" <>
Subject: Re: [Amps] EIMAC 3-400 vs. 3-500 how to ID??
From: R.Measures <>
Date: Fri, 2 Jul 2004 01:34:35 -0700
List-post: <>
 An Eimac 3-400 is c. 0.62" shorter than a 3-500 - and it has a shorter fins on its anode cooler. However peak emission is the same, as is PEP output, for both bottles.

On Jul 1, 2004, at 3:54 PM, wrote:

Due to lack of personal experience over the years with these tubes
I don't know the answer, do you?

 - Is there a reliable way to ID an EIMAC 3-400 vs. a 3-500 beyond
reading the silkscreened info? Assume it is rubbed off completely.

- Q2. is there *any* reason in a standard ham two hole linear amplifier to *not run a 3-400 with a 3-500?


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