[time-nuts] Rb video

[Bob Camp]

Hi

Without seeing his heat sink, there's no way to know how big he intended to make it. If it was the size of the rest of the box (X, Y and Z) then it's a fine solution that will work well. It'll also cost more than all of the rest of the box. If it's a 1/2" thick heat sink that almost matches the footprint of the Rb (and is nice and cheap) then he missed the point. 

Bob

On Aug 9, 2013, at 7:01 PM, Magnus Danielson <magnus at rubidium.dyndns.org> wrote:

> On 08/09/2013 03:09 PM, Bob Camp wrote:
>> Hi
>> 
>> A few observations:
>> 
>> 1) He talks about using a heat sink on the front panel, but then never shows it / does it. The fan inside the box is not going to cool that Rb the way it needs to be cooled. You either need a pretty massive heat sink on the front panel with no fan or something smaller with moving air. 
> He actually says that he was unable to get it in time as it was on
> back-order, so he could not show it mounted, so he showed everything
> else. The cooling fan is to make enough air circulate to keep the PSU
> cool enough, considering that the rubidium gets hot, but the cooling fan
> is not the primary cooling method for the rubidium. He do understand the
> cooling needs of the rubidium, but I would let there be an active
> control-loop for the fan cooling the rubidium.
> 
> Cheers,
> Magnus
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