So I am trying to get into higher voltage projects, namely I got a bunch of nixie tubes very cheap. I was thinking of making my supply by connecting a 230v -> 9v transformer back to back with a 230v -> 12v transformer, which by my calculations should give me 171 volts of isolated AC, without counting in voltage losses. Is this correct? Then I would rectify it to give me around 170VDC.
Is that correct?
Also can I rectify the 9V AC in the middle and connect it to a common ground to power the logic?