[Hamilton]

Thanks John but I may be even more confused now.

#1 black wire does go to Pin 3 of the 6F6.

You mentioned “Terminal 2 on the speaker is a junction between the output transformer primary and the field coil. The wire that connects here should go to Pin 4 (screen grid) of the 6F6” which it does have that connection to both the 8 mfd cap and Pin 4 of the 6F6. 

But later you write “Inspect your connections at the Radio. If the Red Wire that connects to the 8uF cap also connects to pin 4 of the 6F6, the IF transformers and other points, then your connection has to be reversed with the yellow wire.”

Why would I reverse them if they are connected where you said they should be. Please don’t take offense but I find that confusing.

#3 does go to the 12 mfd cap but I can’t check the cathode connection because I don’t believe a 5Y4G has a cathode. There is dark wire, can’t tell the colour, that is connected to the 12 mfd and it does go directly into the power transformer.