[morzh]

Time to rebuild the electrolytics.

I am sure there was a reason for the previous guy to add the electrolytics, so I am still going to gut them.
Here's how he did it:

   
He simply isolated the Neg. ring from the case by a cardboard washer. Smart. And then he used the ring as a solder post.
He also put the notes right on the caps:

   
This shows he worked on it mere 3 years ago.
I am not sure why one cap says "287,4 nF" (remember, outside the US the decimal separator is comma, not period).

Here's what my measurements are:

The 1st filter cap.
   

The second
   

I'd say, this looks like reformable case, but it is easier for me to rebuild and not to think about it anymore.

I am going to use nice Panasonic 33uF 450V caps, two in series, to achieve 16uF (The sch value and the one written on the caps, which are the original ones; I like to keep the 1st cap close to the original value) and then 22uF 450V for the 2nd. All caps have 680mA or so ripple current rating.