As I understand, many of the capacitors for this radioed are housed in a metal box which sits on top of the radio. So far the radio plays well, but if I were to undertake to change those capacitors, what should I expect to find in that box?

:As I understand, many of the capacitors for this radioed are housed in a metal box which sits on top of the radio. So far the radio plays well, but if I were to undertake to change those capacitors, what should I expect to find in that box?

The schematic for the R7 can be found here:

http://www.nostalgiaair.org/PagesByModel/313/M0040313.pdf
The bypass condenser contents are identified on page 1-12.
Carl T