21zp4a crt sub

[timmy]

Any knowledge on who built the chassis for cbs Columbia?

[Electronic M]

Originally Posted by timmy

Any knowledge on who built the chassis for cbs Columbia?

They built it themselves. In the early 50s to compete in the color wars CBS Columbia bought out a TV maker IIRC Air King and changed that makers name to CBS. The FCC wouldn't hear color TV standards proposals from broadcasters, you had to be or own a TV set manufacturer to submit a proposal.
A few years after the color wars were lost by CBS they sold or divested their TV manufacturing division and the brand ceased to be.