Fallout Electronics Theory. This is just a theory I came up with whilst talking to a friend about the Robot's in FO and the use of Vacuum tubes in domestic electronics. The robots and other high end tech in Fallout would require processors akin to that in a modern computer but because of the resource wars production was limited and what was produced was used nearly totally for Military production with a small number given to RobCo and Vault-Tech as part payment for building equipment for the US war effort this is why a small number of robots / other high technology is found around the wastes albeit in concentrated areas. This forced domestic appliance builders to take a step back and use vacuum tube technology that wasn't either as regulated or in demand for war production that is why the TV's and Radios all use that technology, while it might not at first have been a popular move by some the Retro look and feel of said Appliances lead to a all over fashion / cultural change that caused 50's style's to come back. This is only a kinda rough idea at the moment and I would like to flesh it out more so your thoughts and ideas are more than welcome.