Originally Posted by madbrain
I see that the official K-AC76U adapter is $69.95 . A bit steep for a little transformer !
I will probably find an adapter for my new K200D, but I will do so with caution. Cheap adapters are usually not regulated. All adapters are designed to put out their rated votage at the full rated current. Therefore the unregulated ones have a no-load voltage substantially higher than the rating, which drops as load is applied. What happens when we hot plug an adapter whos internal capacitor is chaged to 10 Volts? I don't want to find out the hard way.
No one actually knows what the required current is or if the Pentax adapter is regulated. Perhaps someone who ones one will share the information from the label with us.