----- Original Message -----
From: "Bill, W6WRT" <dezrat1242@yahoo.com>
To: <amps@contesting.com>
Sent: Monday, December 07, 2009 7:48 PM
Subject: Re: [Amps] Advice
> ORIGINAL MESSAGE:
>
> On Mon, 7 Dec 2009 18:15:27 -0500, "Carl" <km1h@jeremy.mv.com> wrote:
>
>>
>>If you want to critique Id appreciate it if you dont edit my post to suit
>>your reply.
>
> REPLY:
>
> Ok, but in this instance it doesn't make any difference. Here's your
> entire
> quote:
>
> "Some of the cooling specs appear to be highly variable. I suspect that as
> engineering staff changed and tube application changed the combination
> resulted in different numbers.
>
> In other cases the spec was written for CCS worse case wheras in ham
> CW/SSB use
> the seal temperature caveat was used fo CYA. This leads to a lot of
> guessing for home brew especially when temperature testing is not done."I
>
> I think where we are having a misunderstanding is your statement "Some of
> the
> cooling specs appear to be highly variable." If you mean AIRFLOW specs, I
> agree. If you mean COOLING REQUIREMENTS, I disagree.
I said cooling specs. What that refers to are tubes that the spec changed
over different revisions of the spec sheet. Seal temperature is a constant
these days but was not always so as processes improved..
Carl
KM1H
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