I checked voltages and waveforms at C198 which is a .01 in this case since I have the early production run of the chassis. I got about 10 volts on the top side of the .01 and 0 volts at the ground side. I didnt see any variation in voltage when adjusting the reactance coil (provided I adjusted the right coil). Here is the waveform I observed at the top side of this cap. Please note that all these measurements were taken with the chassis on the workbench. So no HV or connection to the CRT at all. Here is what I found.
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Admiral C322C2 Regent (Restoring)
RCA CTC-7 Pensbury (Restored)
RCA CTC-5 Westcott (Restored)
CRA CTC--4 Director 21 (Restoring)
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