Vintage Coin-op Tennistronics Tennis Tronics Arcade Video Game ca.1975

Description

Vintage Tennistronics Tennis Tronics Arcade Video Game ca.1975.
I also have a pinball machine listed from this same estate, of a friend, who passed away from pancreatic cancer.
I plugged this in, and I hear beeps and the screen shows a rolling blue screen. Thats the extent of my test. I cannot find anything on the internet about this machine. I am not familiar with arcade games. Being sold as seen. Pickup only. Bring someone with you to pickup from the 2nd floor of a home.