The long awaited package from eBay seller "mitools" arrived today - and it's the WRONG item!
It should of course be a 2% thoriated rod, colour coded red, and 1.2mm thick. What they have sent is a 2% CERIATED 2.1mm rod, colour coded grey. This is useless as a check source for the blindingly obvious reason of it not being radioactive!
So it's going back for exchange and perhaps sometime soon I might finally have a check source!
I've ordered some MPSA18 transistors as well to try the base control method of regulating the HV circuit. These have very high gain.
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