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Doug, thanks for the info. As far as the Space Command chassis goes I dont know if it works or not. I have switched it on and dangled a ring of keys around it and got no reaction. I have no remote. Someone posted and said that the keys would usually cause some reaction from the unit. I have done a lot of investigation into the use of a 5u4 in the place of a 5au4 and the conclusion is that it is not a suitable or recommended swap so I have ordered one to try the set for the first time with the correct tube. I dont really think the bad tube swap would cause the vertical, sound, and lack of signal problems but the set needs the right tube. It came with the 5u4 but the schematic calls for a 5au4. That is the one thing left that I know is wrong. After that I dont know what direction I will go. I have replaced several resistors out of 20% and some at 10% if they had the silver band. I have replaced all of the capacitors with the exception of the ceramic discs and a couple of the blood red versions of orange drops. I dont know what they are called. They are mostly mounted on potentiometers. I have swapped out the vertical tubes and checked all the others for shorts and emissions. Like I have said before in other posts I should have seen some improvement by now for sure and it is real frustrating to have done all this to still be standing at square one. I guess eventually I will replace some overlooked item and the set will come to life and work perfect for years. Hell, it will be brand new virtually.
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