Now that's a toy you don't stumble across very often! Not sure what I'd do with it, but others may have a use: https://www.radiacode.com/
Oh no. This is going to be a “Shut up and take my money” link, I can just feel it.
Oh no. This is going to be a “Shut up and take my money” link, I can just feel it.
Check that whatever you're going to link it with is running up to date software if it's Apple. My two ancient iPads (iOS 10.3.3 and 12.5.8) won't run the display app, so it's more expense for a more recent iPad.
I bought it because I have a lot of WW2 radio kit with luminous paint on the dials (etc.) and camera lenses with thorium in the glass. (Kodak "Ektar" lenses being one to watch out for.)
Some valves have radioactive sources inside to ensure striking (e.g. 85A2).