Ive modified this Atari 2600 with RCA baseband output thusly eliminating the need for an RF switchbox. It's also now fitted with both, RCA and 1/4" output jacks  for professional audio. I've also added a volume control and

On LED.

Normal gaming is still possible, this Atari still functions as normal, now with more convenience.

My modified Atari 2600 consoles pair perfectly with the Synthcart.

You can find the synthcart for sale at Atariage.com.

Modified Atari 2600 Video Game Console