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A note on the set that I restored, I have posted this before. Make no mistake, I am well aware of electrolytic capacitors that can go south, especially if they are about 80 years old.
I will say that in my 630TS, it was obvious that the electrolytic capacitors in it were from two different manufacturers and I will refer to them as a style. You could tell because the bottoms were two different styles. I found that one of the style absolutely did not respond to reforming. It continued to leak even after slowly bringing up the voltage. When I unwound the paper, it was obvious that they were bad and had gotten hot.
Now the other style, responded very well and as they were reformed, they had the equivalent leakage and value of a new capacitor. For the one style that leaked, they were uncrimped and new 105°C capacitors were stuffed into the cans. After testing to ensure that all was good, I re-crimped the bottom and installed them.
The ones that reformed were left alone and still work to this day. Mind you, when I tested them, they were completely out of the circuit; all components or wires removed.
Had I restored this set for someone else, I would not have been inclined to leave 1946 manufactured capacitors in place. But every wax capacitor was methodically replaced and mica caps left alone.
Just me, "Your mileage may vary" as they say.
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