A roundie found ME this time.

[drh4683]

excellent save! Another zenith lives on. I like that model very much. I dont think Ive ever seen a zenith roundie that didnt have a broken convergence clover of that design!
As for the lateral magnet, on these early sets, they are actually supposed to be at about 2 o'clock position like its shown. If you were to move the lateral magnet to the top like most other sets, you would notice that it would move the blue lines vertically as opposed to laterally. you can see the blue pole piece through the neck at the 2 oclock, just center the magnet over it.

The 26KC20 is zenith's 3rd generation TV chassis. Ive actually got one in a metal woodgrain cabinet like yours. I dont think anyone on the forum has or has ever seen a 27KC20, which is the next chassis after the 29JC20.

As for the "cateracts" on the 21FBP22, its very typical. There is a rubber gasket between the CRT and the lens. You will have to pull the CRT out of the set like you would expect and the lens will simply spearate from the CRT once you remove the mounting bezel assembly. The rubber gasket breaks down and will be very oily. You will notice a pool of oil between the glass and the lens at the bottom of the CRT when you pull it apart. There will probably also be some oily residue inside the cabinet beneath the CRT. The cateract appearnce is oil vapor residue. It cleans off really easy. I clean the gasket, which in my experiences have always been very flexible and not dry rotted with alchohol to dry the gasket of the oily fim and remove the residue. soap and water really doesnt do it too well. Good luck with it!