[Amps] Water cooling. Not dummy load.

[Joe Subich, W4TV]

On 2021-02-25 11:35 AM, Steven Katz wrote:

> If I were to homebrew something, I'd likely copy what they did. It
> was compact, efficient and very quiet.
You may be able to get some ideas but there are significant differences
between water and vapor phase cooling.  You need to be absolutely sure
that the water does not boil with water cooling.  The issue will be to
assure sufficient water flow and radiator capacity.

73,

    ... Joe, W4TV


On 2021-02-25 11:35 AM, Steven Katz wrote:
> The Alpha 70V used a 3CV1500A7 (c. 1990) and worked very well.
> 
> Some info on that is in the manual:  https://www.alpharfsystems.com/wp-content/uploads/2016/05/70V_Manual.pdf
> 
> Some good images of the amp, inside and out, including close-ups of the cooling tubing connection to the tube etc. can be found here:  https://www.google.com/search?safe=off&rlz=1C1GCEU_enUS901US901&sxsrf=ALeKk00Q2VBQ2AirnWhorc7Sy_RknC9tLw:1614270777508&source=univ&tbm=isch&q=alpha+70v+pictures&sa=X&ved=2ahUKEwiDxY6iu4XvAhW4HDQIHcl2DCIQ7Al6BAgEEBA&biw=1920&bih=1089#imgrc=sPrzcLglsbhLFM
> 
> If I were to homebrew something, I'd likely copy what they did.   It was compact, efficient and very quiet.
> 
> 
> -----Original Message-----
> From: Amps <amps-bounces at contesting.com> On Behalf Of Bob D.
> Sent: Thursday, February 25, 2021 8:20 AM
> To: amps at contesting.com
> Subject: [Amps] Water cooling. Not dummy load.
> 
> Anyone using the water cooled version of 3cx1500A7.
> 3CW1750A7
> How'd you do it?
> 
> 73, -Bob ah7i
> 
>