[truePhilco]

I need some help on this model. I wanted to get one of each color
in this model, I thought I finally got them, the Radio Gallery shows I do.
https://philcoradio.com/gallery2/1949a/#Model_49-602
But seen on the schematic two more other colors
I have not seen (ivory, maroon). Let me know if you have.
https://philcoradio.com/library/download/service%20info/yearbooks/1948-1949/split/Part62-Philco%20Home%20Radio%20Yearbook%201948-1949.pdf

But now, on getting all three working. The green one is working and
looking how I like to see them. I know I will not get the ones on the left or
right to look like this. I have already put some new caps on the one on the left. The question

I have for now is, on the bottom left corner of each (black, orange and blue in color) there is what
I think is a rectifier? Please tell me about them, what they do or for?
The ones on left and on right have a resistor on them (mid. dose not)
do you know why? I want to get the ones on the ends 
up and running and have one in each color!