Howard Bingham wrote:

One question, what are "paper capacitors" & how do they differ from
those found on other radios..? (One of the contacts who aparently
services these old German radios suggested replacing the paper
capacitors before replacing tubes.).

Howard Bingham, Houston, Tx.
KE5APJ

Most radios have three basic kinds of caps -
electrolytics, which have large capacitance
values and show up in the power supply and the
audio output, tubulars, which have middling values
and show up all over the place, and small-capacitance
ceramics. Ceramics are usually small plastic disks or lozenge
shaped, and rarely fail. The electrolytics in older
radios are almost always bad and need replacing. Older
radios had tubular caps which used wax-impregnated
paper to separate the foil "plates." The wax-paper degrades
with time and they usually need to be replaced, though
I have seen plenty that are older than your radio that are
still OK. You should definitely replace the electrolytics
and any paper caps that are in the power supply before replacing
any tubes or else you may well have to replace the tubes again
right quick (as the saying goes, "Ask me how I know").