I found an old Commodore 64c without a box, cable, or anything else and I want to put it back to work.
In order to do so, I need to turn it on to see if it works. I've already found the pinout of the power port but I don't know some characteristics of the 9 Vac supply waveform. These unknowns are the frequency, the waveform type and if it stays positive or goes positive and negative. I have the European version.
Does anyone know this information?