My Acom 1000 manual says the 4CX800A and GU74B are different numbers for the
same tube.
Carl Moreschi N4PY
121 Little Bell Drive
Bell Mountain
Hays, NC 28635
----- Original Message -----
From: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
To: <tentec@contesting.com>
Sent: Friday, December 19, 2008 12:16 PM
Subject: Re: [TenTec] The Titan IIII - 4cx800s
> On Fri, 2008-12-19 at 08:26 -0800, Ron Castro wrote:
>> I wonder if the 4CX800's will be a direct replacement for the GU47b's?
>> IIRC
>> there never really was a 4CX800, that was just a label given to the
>> Russian
>> tubes since that described them in 'Eimac' terms.
>>
>> Ron Castro
>> Chief Technical Officer
>> Results Radio, LLC
>> N6IE
>> www.N6IE.com
>>
> At least in pictures, 4CX400 and 4CX800 had those numbers on the tubes.
> Though it would not be hard to make a rubber stamp and roll the cooler
> over it for pictures sake. Maybe use paint instead of stamping ink on
> the stamp.
>
> 73, Jerry, K0CQ
>
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