[zenith2134]

These were an extremely common set around here. The 17" did indeed have an absolutely blinding picture with sharp focus that rivals anything. However, the 19" was the more common model, and they started showing up dead on the curbs well before the DTV switchover. Instead of just jockeying-in Mexico rebuilt boards, I often kept these running by changing out the main filter, sparkgaps if applicable, plenty of soldering around the 181 and 186 edge connectors' and flybacks when you could still dig through your junkpile for a free one that matched.
The thin film flat resistor assembly on the crt neckboard always needed attention or you would have a solid runner with the intermittent bright red screen with retrace (or green...) mimicking a shorted tube.

I have at least 5 or six of this cabinet style in my climate controlled garage. Have around 25 sets on breakers which I fire up once or twice a year to keep the caps alive somewhat.

It's funny, the GE 17" AB/AC also had the nicest picture of their series' screen size. I reckon that this size was a sweetspot in terms of inline crt deflection angle and EHT regulation.

The series that succeeded these, with the 9-470, was not a favorite. It had Hitachi IC color demodulation which was rock solid, but the writing was on the wall for Zenith by the late eighties.