[Amps] QRO 2500DX MARK lll 4CX800

[Carl]

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.

Carl


----- Original Message ----- 
From: John Bodine
To: Amps Amps
Cc: km1h at jeremy.qozzy.com ; n2iccarl at gmail.com
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.


https://www.dxengineering.com/parts/dxe-gu74b



On Tue, Apr 2, 2019 at 1:32 AM Steve London <n2icarrl at gmail.com> 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.

73,
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.
>>
>> Carl
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-- 


Later,
        John Bodine/WU2E 


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