Through the years some of the caps may have been replaced with caps with similar but larger values of capacity and working voltage. This is OK. Find a correct schematic and follow it like a map. If the other circuit components such as resistors and tubes follow the schematic, generally the capacitors will be pretty much the same, but even the manufacturer will sub out an out of stock cap with a more expensive, larger value part to keep the production moving.
Did the radio work before you started the job?
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