Hi the right cabinet will have a door that opens on the top and will have metal data plate on the door... Do not mess with the RF alignment do just the IFs..RF has vert thin wire thats glued down break that and you will have to remove the rf deck and take it a part to repair the wire.. I know took me 3 days to fix that a real pain.The last tube befor ant is a 957 acorn if i remember right they use it to keep the set from radiating out the ant.I jumpered mine and i got many more stations i used a piece of wire i cut for the FM band it was in ceiling! Worked great.Sandy get that radio playing they sound nice!Sprman55