need help

[radio nut]

I am helping a friend with a Stromberg Carlson radio. I had a hard time finding a diagram for it. I found one 8 years ago at my library in one of two green books with diagrams in it. fixed the set and it was used regularly. Well it quit recently. He lost the diagram for it and I have no idea what model it is. The library sold the books since then.

It is a trf set and the #27 tubes are not getting b+ voltage. but there are two many questions for me to just dive in. As an ex. there is a pretty big can that has 8 pins and 6 are disconnected and have electro. caps hooked to them going to ground. What are the other two pins for? one has 187 volts and the other is dead. That and there is two small boxes that I don't know what is in them but I didn't touch them to begin with for a reason. Darned if I remember now

Any help is greatly appreciated... This set was purchased according to my friend the day his dad was born and has been in his family since 1928 so he really wants it running. He says he misses playing it.

Tubes are; 80,71a and 27's The 80 is top right and you really can't see it. the tubes in a line and one to the left closer to the front are 27's and the left back is the 71a

The metal tag on the back has a " piece" number of 17897 but no model number.just the usual info.