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Dave:
In practice, most techs aligned the oscillator slugs while the TV was in the cabinet so they didn't ground the AFC. I just used a VOM or VTVM and adjusted for -0 volts. The jumper will give more meter deflection, but the setting becomes very touchy. If you are a purist, then grounding the 1001 at the same point will give the same effect as on the 1000, but neither one is essential.
As Chuck says, Philco used beam bender as it is the correct name for the ion trap. It doesn't trap ions, it bends the beam so ions don't hit the screen. Somehow "ion trap" evolved early in the industry and stuck.
Since the focus coil and controls are loaded directly on the B+ supply, replacing the 5U4s may reduce the focus control effect on centering. If not, set for best focus and re-center using the focus coil mechanical adjustments.
Most antenna connections were just jumpered from hi to low at the antenna plug. That works fine in strong signal areas. Fringe area reception required more careful matching. The Philco service books go on at length about proper matching. Unless you are using the TV in a weak signal area or are attempting to eliminate interference, I doubt you will see any difference.
Don
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