Technical Question For our Signals Officers

[NorthernRaider]

Ok techies

I've got this Intek H520 coming it runs on 6 x 1.5 volt Nimhs or Allalines = 9 Vdc ( I think) or via a vehicle adaptor that plus into the cigarette socket that drops the car supply to the radio supply.

SOooooooooooooo

How do I power it from the 220 volt AC mains when the transformers / reducers are apparently 12 or 13.4 VDC and not 9Vdc??

Gracias
Danke
Merci
Thanks
Cheers