[Amps] Tube Cooling..

[Carl]

----- Original Message ----- 
From: "Ian White GM3SEK" <gm3sek at ifwtech.co.uk>
To: <amps at contesting.com>
Sent: Saturday, November 27, 2010 3:06 AM
Subject: Re: [Amps] Tube Cooling..


> Carl wrote:
>>
>>Top down cooling is the norm in many coaxial cavities at VHF/UHF. My
>>Collins 432 MHz military amp with a 2.75KW dissipation tetrode runs
>>that way and it was used as an AM linear at 1000W out. A seperate small
>>blower cools the input side. Due to the TX/RX relay and the coax going
>>to the hardline and antennas I cant run it even close to its capabilities.
>>
>>I'll also be using that method at 1296 with a pair of  GI-7B's unless I
>>decide to go with water cooling.
>>
>
> Do you really mean "downward through the anode cooler", Carl?

Yes

Carl
KM1H