Similar to my last question about Singapore. Where would one go in Greece to find AC "wall wart" power adapters with 12VAC (not DC!) output, 500mA current capability, 2.1mm x 5.5mm coax connector?
In this case, looking for a retailer, someone that an individual customer of mine (rather than a distributor) could go to to purchase just one.
In the USA I would point someone to Radio Shack or Frye's for a storefront, or to Jameco for mail-order; in UK, to Maplin; in Singapore, I'd send them to the electronics bazaars that Franc kindly pointed out. Where should I send them in Greece?