They sure do look cool though!
-----Original Message-----
From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com] On
Behalf Of Carl
Sent: Monday, August 30, 2010 12:33 PM
To: Rob Atkinson; amps@contesting.com
Subject: Re: [Amps] Tubes, made in the USA, in the olden days; Films?
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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