> So how should I do to properly test all old instruments and tubes that I buy > to check that they are safe, free from harmful radiation, is there any > reliable equipment that don't cost an arm and a leg that I can use at home?
The BWP34 ones mentioned before are probably the most cost effective. Here's Elektor's version: https://www.element14.com/community/servlet/JiveServlet/previewBody/41953-102-1-229709/Elektor%20Radiation%20Meter.pdf <https://www.element14.com/community/servlet/JiveServlet/previewBody/41953-102-1-229709/Elektor%20Radiation%20Meter.pdf> Maxim describes a fairly reasonable one here: http://pdfserv.maximintegrated.com/en/an/AN2236.pdf <http://pdfserv.maximintegrated.com/en/an/AN2236.pdf> If you want to use an actual GM tube, there are kits available, like this open source one ($40 and up): https://sites.google.com/site/diygeigercounter/buy-the-kit-1 <https://sites.google.com/site/diygeigercounter/buy-the-kit-1> Or this commercial offering ($30): http://www.goldmine-elec-products.com/prodinfo.asp?number=C8600 For those, you'll have to source the tubes separately, or buy (more expensive) options including tubes. None of these options will give you lab-grade accuracy, but are completely fine for checking things to see if they're radioactive or not. For the curious, my go-to Geiger counter is the Black Cat Systems GM-45, with a very sensitive "pancake" style GM tube, but that thing is more expensive at $349. - John -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/1065B591-75E5-496D-84DF-F72DB397BC75%40mac.com. For more options, visit https://groups.google.com/d/optout.
