9v 500mA NOISE FREE Power Supply Transformer for Atari 2600, Pong, Stunt Cycle, Gemini (110v)
Amazon.com: WICAREYO AC Power Supply Adapter with F Plug Female Adapter F Type Male Plug Coax to RCA Female Jack RF Video TV Connector for Atari 2600 System Console US Plug :
power supply for atari 2600-ac adapter| Alibaba.com