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You can't go wrong with any pre early 1980's Zenith; especially a chromacolor or chromacolor II. The one in question was probably made between '74 and '79 and used the upright chassis. Before plugging it in, remove the back and see what safety capacitor is installed. It will be right under the horizontal output transistor heatsink. If it's white, it should be replaced before you power up the set. If it's orange, you'll be fine as-is. Those white caps can and will suddenly open, causing the HV to shoot through the roof, which will blow the neck off the CRT and ruin other parts. I believe the bad white caps were only used in the '74 and '75 "E" and "F" line chassis.
When I was growing up, my neighbor had a Zenith in a similar cabinet. The only difference was that hers had the single knob varactor tuner.
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