Coleco Telstar Colortron power adapter

[edintv]

Hi,

 

I just aquired my first Pong unit, a Coleco Telstar Colortron, that uses 2 9v batteries, But ireally want to use a Universal dc adaptor, I just need to know the polarity (in the conector), I don´t want to burn the unit. If anybody knows or have one, please let me know..

 

Greetings..