@budgiebin@snouts.online I was about to ask for measurements; I was able to find a part number in the service manual (the power plug is not proprietary, it's an HEC2305-01-030) but I couldn't find any actual datasheet for that

But if you want to modify it putting a new power plug in would probably be easy

Don't expect it to be all that energy efficient! it doesn't seem to be designed to run on batteries

@budgiebin@snouts.online oh I see the problem, it uses a center-negative input, which is opposite polarity from most of these things. The ones you plugged into it might have been center-positive supplies, which are more common by far (you can convert one by just cutting the wire and swapping them though)

@Motodrachen @budgiebin@snouts.online Oh, are you the one doing the modification?

@Motodrachen @budgiebin@snouts.online Huh. With the input protection circuitry damaged I'd worry that something else broke due to the input protection not working--unless you mean it was stopping any power from getting to the rest of the board.

@Motodrachen @budgiebin@snouts.online that's not too uncommon, especially if it's an old one--a lot of older wall warts are unregulated and output something above their rated voltage with no load on them

@Motodrachen @budgiebin@snouts.online I dunno, it's not exactly a recent thing is it? modern electronics can be sensitive to that but older ones tended to be more tolerant of weird power supplies

@Motodrachen @budgiebin@snouts.online I haven't analyzed the circuit completely but chances are it's a super generic bjt that you could replace with a 2n3904 or 2n3906 depending on whether it's pnp or npn (it might need more current than that though, I don't know, maybe a tip31 or tip32)

@Motodrachen @budgiebin@snouts.online I imagine it doesn't depend too strongly on β but do try to get one with a fairly significant β

@Motodrachen @budgiebin@snouts.online I'm sure you know what you're doing though, I just find this really neat!