CTC-19 cabinet question

[matt_s78mn]

Originally Posted by Chad Hauris

Bobby, the motel/hospital etc. sets did use the square type knob whereas the consumer sets usually used the type with a bar type grip. The motel sets were branded RCA Mural TV and had other features such as a 75 ohm coaxial antenna input and a cover panel for the service controls.

I can understand covering the controls to keep people from tampering, and using a 75 ohm connector for connection to a MATV system, but what is the reason for using a different tuning knob?

[Chad Hauris]

I'm not sure...the only "consumer" model RCA I have seen use the square knobs has been a CTC-30 with power tuning. All of the other ones have been on Mural sets.