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Man who wore horns at US Capitol to get organic food in jail


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3 hours ago, NipkowDisc said:

some years ago they found an old CD geiger counter tucked away in a crevice of the brooklyn bridge.

:)

Image result for old CD geiger counter

I can't see anything but I have a rugged no nonsense geiger counter.  Be surprised how simple the circuit and operation is.

The whine you hear through the headphones is the switching power supply. The rugged and simple design makes it very reliable, only need 2 D batteries. You can find a lot of NOS units but needs the cesium sample on the side replaced and recalibrated.

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Don't confuse it with a radiological SURVEY meter which uses an ion chamber instead of a Geiger-Mueller tube.

CD-V-715-Radiation-Detection-Survey-Mete

 

715mod1Bbig.jpg

 

 

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21 hours ago, hamradio said:

After a nuclear war we be eating not so organic crackers and biscuits?

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We won't be that limited.  IF we survive a nuclear holocaust we might be feeding on the only other life form able to survive that circumstance....  ;) 

Sepiatone

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