The Sinclair QL Forum

Thanks for the information of the dc current it makes it little easier now to build new transformer.

I got my transformer which i planned to use in QL but find a problem there's four wires coming out of the transformer two is 12vac and other two is 9vdc how can i connect those to QL because it only have tree pins, i know now the midle one is gnd(0V) but how does it affect if i connect dc gnd and on...

Hi i got a QL without psu and wanted to make my own psu i did find suitable transformer it was from bosch power drill it has got 9vdc and 12vac outputs. But can someone with working QL psu measure the pins, so i dont burn my beloved QL. In case someone needs the psu the model is Bosch Frivo FW 3299/...