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(...) Wow cool, where are you going to obtain radioactive material (legally and without gettting in trouble with the authorities) to test your counter? :) (19 years ago, 30-Jun-05, to lugnet.robotics.rcx)
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| | Re: Custom sensor current drain - use two sensor ports?
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(...) Uranium or thorium ores are easily found in mineralogic collections... very nice radio-sources ;o) Of course precise calibration is another story! See for example (URL) (19 years ago, 30-Jun-05, to lugnet.robotics.rcx)
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| | Re: Custom sensor current drain - use two sensor ports?
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(...) Much easier than that - run down to the local camping store and buy some gas lantern mantles. Unless they've changed something in the last five years or so, they incorperate a reasonable amount of Th-232 which makes geiger counters click (...) (19 years ago, 30-Jun-05, to lugnet.robotics.rcx)
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| | Re: Custom sensor current drain - use two sensor ports?
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(...) Also you are likely to get a reasonable reading from Smoke detectors - though please dont dismantle the one that could save your neck! Danny (19 years ago, 30-Jun-05, to lugnet.robotics.rcx)
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| | Re: Custom sensor current drain - use two sensor ports?
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(...) Watches with glow-in-the-dark spots on them are a radioactive source. Brian Nielsen (19 years ago, 7-Jul-05, to lugnet.robotics.rcx)
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