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would be a good idea to get the tubes in the sweep circuit (damper/shunt/HV rec/horz out) as they take a beating. Also I would get an extra horz osc tube just in case, as losing that can take out the horz out.
Cap wise, assuming its been powered up (TV) then no point in trying to reform the filter caps, they are either ok or blown now. Typically sets of this era do not need massive recapping to work, besides the PCB's can be cooked and fragile so no need to stress them with needless recapping.
I would get a new horz out, monitor the cathode currrent (make sure it does not go over 220ma) and try it out. If the can caps do not get hot they are prob not shorted (but could be open). A base line run with the replaced tube would be the way to go.
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