Yup, and availability. Both available from multiple chinese
manufacturers as well as Eimac. Also, I suspect the 4CX1000's were
retrofitted to the (now unobtainable ) 4CX800 design.
Mike, W1NR
Carl wrote:
> Cost.
>
> The auto tune buyers can afford it!
>
> Carl
> KM1H
>
>
> ----- Original Message -----
> From: "Roger" <sub1@rogerhalstead.com>
> To: <amps@contesting.com>
> Sent: Sunday, July 12, 2009 10:18 PM
> Subject: [Amps] Tubes in Alphas
>
>
>
>> I'm wondering what the reasoning behind Alpha using different tubes in
>> the manual and auto tune versions of their amps. They are now using
>> different tubes in the manual tune and auto tune versions. The auto
>> tune version (9500) uses the well known 3CX1500/8877 while the manual
>> tune version (8410) uses a pair of the ultra linear 4CX-1000 tetrodes.
>>
>>
>>
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