[Amps] KPA1500 Efficiency vs. RF-Kit B26

[GEORGE WALLNER]

I have built 8 amplifiers with water cooling. I can testify that it is much 
more effective than air cooling, and with less noise. There is a much 
simpler way to do it than shown in the video (although it is a great job!). 
I braze copper tubing onto the bottom of the heat-spreader. Pumps and 
radiators are all available on eBay and if you do your tubing right, you 
will never get any coolant leak. I use distilled water with 20% glycol.
73,
George,
AA7JV/C6AGU



On Wed, 14 Jul 2021 14:26:19 +1000
  Adrian <vk4tux at gmail.com> wrote:
> Watercooled. This is a great watch ;
>
> https://www.youtube.com/watch?v=2d_rkfj05mI
>
>
> On 14/7/21 1:57 pm, Jim Brown wrote:
>> On 7/13/2021 7:04 PM, john at kk9a.com wrote:
>>> And what is the KPA1500 fan noise level at 90°C?
>>
>> LOUD!
>>
>> Jim
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