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Re: [Amps] Eimac Y-400

Subject: Re: [Amps] Eimac Y-400
From: Daniel Raney via Amps <>
Reply-to: Daniel Raney <>
Date: Mon, 31 Oct 2016 19:02:49 -0400
List-post: <">>
Hi Jeffrey,
I haven't found a data sheet for the Y-400 but, a quick search ( on this forum) 
found where a gentleman talks about this as being the best version of a 4CX250R 
/ 7580W.
USAF spec tube. 300Ma cathode current.

A spec sheet may not exist ( Eimac told me this with the Y-180 and told me it 
was a nickel plated version of the 4CX300A but that they never printed / 
published a spec sheet on it). Write to them. They are very good about 
responding and answering our questions.

Hope this is of some help..............Dan

-----Original Message-----
From: Jeff Pederson via Amps <>
To: amps <>
Sent: Mon, Oct 31, 2016 11:09 am
Subject: [Amps] Eimac Y-400

Its been some time since I posted hear or asked any questions. I cant find any 
tube data for a Eimac Y-400, I tried searching google but didnt come up with 
anything, does anyone have a datasheet for this tube or what tube its similar 
to. Any help is appreciated. 

Kind Regards


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