[Ron Ramirez]

Bear in mind that with the 80 tube out of the socket, the voltage you are measuring is a no-load voltage; that is, nothing is connected to the high voltage winding with the 80 tube out of the socket, so the reading will be higher. With the 80 IN the socket (assuming the rest of the tubes are also in their sockets and the set is operational), you will find the voltage reading to then be closer to normal.

This is true of any power transformer. With no load, the voltages will be higher than when they are under load.

Incidentally, you are lucky if your line voltage is only 117 volts. A lot of modern homes have anywhere between 120 and 128 volts. 117 will be kinder to your vintage radios.