This an historical tube, used to display the temperature of the coolant in 
Chernobyl. "Between 7 and 9, this is OK"




Oups..... sory.

Le mercredi 4 octobre 2023 à 21:09:51 UTC+2, Audrey a écrit :

> I wonder if Bill will get this to go with his "7" tube 😉
>
> On Wed, Oct 4, 2023, 3:05 PM Mac Doktor <[email protected]> wrote:
>
>> https://www.ebay.com/itm/115933140121?
>>
>>
>> Terry Bowman, KA4HJH
>> "The Mac Doctor"
>>
>> https://www.astarcloseup.com
>>
>> "It's a bit like saying we have a bit of a poor design for the engine in 
>> our jet or rocket-ship but we have a sensor that will tell us if it's on 
>> fire."—James Cameron explaining how not to design a pressure hull for a 
>> submarine.
>>
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