Oh, okay I didn't know all that. it would work for me on AM since I
typically operate only on 40 75 and 160 and I could run with a blg
slow blower. Except that I have so much hardware now for 4-1000As
that I'm not changing the game plan hi hi.
73
Rob
K5UJ
On Mon, Aug 30, 2010 at 11:33 AM, Carl <km1h@jeremy.mv.com> wrote:
> It runs out of steam above 20M and up plus it really should have some forced
> air when pushing at ICAS ratings, seal ratings are only 145*C. Its a fine
> AM tube but rather useless in GG SSB as its pretty low gain.
>
> The audiophools like them also.
>
> Carl
> KM1H
>
>
>
> ----- Original Message ----- From: "Rob Atkinson" <ranchorobbo@gmail.com>
> To: <amps@contesting.com>
> Sent: Monday, August 30, 2010 12:02 PM
> Subject: [Amps] Tubes, made in the USA, in the olden days; Films?
>
>
>> I don't have the spec. sheet right in front of me but I recall the 833
>> could put out a hell of a lot of power with no forced air cooling.
>> 600 w. (but I forget what biasing) sticks in my mind but don't hold me
>> to that. Whatever it was, it was very high and made me wonder why it
>> is not used in ham amps for all these operators who are obsessed with
>> not having any blower noise. My guess was supply, cost of the tube,
>> and the (for hams) unconventional way they are mounted.
>>
>> Rob
>> K5UJ
>> _______________________________________________
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>> Amps@contesting.com
>> http://lists.contesting.com/mailman/listinfo/amps
>
>
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