The is the text of the original power supply:
Switching Adapter
MODEL:DSA-42PFH-12L FCA 120350
P/N:30-150-000039B
INPUT: 100-240V ~ 50/50Hz 1.2A OUTPUT:+12.OV-- 3.5A, 42.0W


Output plug is 6mm, positive voltage on the inside.
Make certain that your power supply can deliver 3.5A at 12 Volts
Typically on the variable power supplies, the max current decreases as the voltage gets higher.

Gem.Angaben auf Gerät konfigurieren.

Goobay 3 V - 12 V Universal-Netzteil 0.6 A