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NER10 X-Ray generator

I’ve bough from eBay a NER10 X-Ray generator tube. It was build in 1925-1930 I don’t know exactly when. It’s interesting to see how well…

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Posted in Admin's blog

PRT-E750W & PRT-E1500W vfd settings

How to set correctly the PRT-E750W and PRT-E1500W  (are equals except for the power capability) VFD supplied with CNC 3020 and CNC 6040 chinese routers….

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Radioactive sources

This is my actual collection of radioactive sources. Thorium Kodak lens Kodak had made some 35mm analog film models of cameras (1950-1970) like Retina IIIc,…

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