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Re: [Amps] 3-500Z cool down time

To: Bill Turner <>, Amps group <>
Subject: Re: [Amps] 3-500Z cool down time
From: Kimberly Elmore <>
Reply-to: Kimberly Elmore <>
Date: Tue, 6 Jun 2017 13:40:36 +0000 (UTC)
List-post: <>
True enough; I was simply statingthat the 3CX1200 is a ceramic replacement for 
a glass envelope. It's a fine tube, though it requires a fair bit more drive. 
That is, aparently, the price paid for a high grid dissipation rating. It's 
easier to drive when running 4 kV B+, though. At that voltage, I never fail to 
acieve full output with a 100 W rig on any band. 
Kim N5OP

      From: Bill Turner <>
 To: Amps group <> 
 Sent: Monday, June 5, 2017 9:32 PM
 Subject: Re: [Amps] 3-500Z cool down time
------------ ORIGINAL MESSAGE ------------(may be snipped)

On Mon, 5 Jun 2017 20:48:40 -0500, Kim wrote:

>The 3CX1200 is a ceramic version of the 3-1000Z. I have an amp that uses one 
>and it's ready in under 10 s. 
>Kim N5OP


Yes, but that's a very expensive tube. I was thinking of a ceramic
3-500Z for the same price as glass. 

For what they are asking you might as well get an 8877. Different
socket but lower drive and more output.

73, Bill W6WRT
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