RCA also made a small plastic 9" portable in the late 60's or early 70's.
You've probably seen the Mod Psychedelic warped Checkerboard version on eBay before but they came in other colors too.
I have a blue one around here somewhere but I can't find it just now to take a picture.
I don't think it's any smaller than that Panasonic but it's certainly lighter than the RCA personal Portable of the 50's.
As for CRTs in the RCA's I've only found one weak tube out of a total of 14 sets (two of which were parted out) compared to the 9" GE in which nearly every 9QP4 CRT is bad and was in fact subject to a recall or service bulletin back in the day.
Another problem with the GE is the plastic front gets brittle and the CRT mounting holes break off, I've had to Epoxy pretty much all of mine back together, they are broken after shipping guaranteed, this doesn't stop them from selling for insane prices on eBay though.
OTOH the GE can be recapped in a hour or so and only weighs 13 pounds or so.
In short, the RCA was the grown ups set, Kitchen Den Office, and the GE was for the kids room, even though it was a hot chassis and could electrocute the little rug rats.
