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Re: [Amps] QRO 2500DX MARK lll 4CX800

To: "John Bodine" <>, "Amps Amps" <>
Subject: Re: [Amps] QRO 2500DX MARK lll 4CX800
From: "Carl" <>
Date: Tue, 2 Apr 2019 20:56:59 -0400
List-post: <>
Can you supply the date codes to backup that statement? My sources state they are just a later batch released from surplus and the DXE reviews are mixed....only 3 reviews going back a year or more do not give me a warm feeling.

Also DXE is drinking the same Cool Aide as Svetlana which is just one of many reasons I wont buy anything from them. The GU-74B is strictly a 600W Pd tube and is also specified for SSB service in the REAL specs....and not 800W.

Run 'em easy and dont believe the liars and cheats.


----- Original Message ----- From: John Bodine
To: Amps Amps
Cc: ;
Sent: Tuesday, April 02, 2019 7:04 AM
Subject: Re: [Amps] QRO 2500DX MARK lll 4CX800

From personal experience, I would recommend DXengineering for the GU-74b.
These are from a new production run by Svetlana and they work great but YOU MUST reset the bias when changing tubes or they may not run linear.

On Tue, Apr 2, 2019 at 1:32 AM Steve London <> wrote:

So, Carl, where would you suggest us cheap, constantly crying, hams get new, or
at least new-old-stock Eimac 4CX800's and 3CX800's ? Lotsa luck.

Steve, N2IC

On 04/01/2019 09:08 AM, Carl wrote>>
Unlike Eimac, Philips and similar manufactures who design tubes for CCS
service along with plenty of reserve emission to compensate for aging. that tube and most amateur service Chinese are run at the edge. And cheap hams
cry constantly.

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