What a basket load of gibberish. You provide no evidence whatsoever on the topic. And just take the usual contrarian position demanding impossible standards of proof from others. You are suggesting we would need to verify the sign atop the TSBD was "metered" to the TSBD? That doesn't even make any sense. And why would anyone need to connect the sign to the elevator? We know that Baker and Truly took the freight elevator with no problem. We aren't just discussing the elevators. What the functional sign could show is that the power was not off in the building as some CTers have falsely interpreted the Hine testimony. They suggest the lights were out (i.e. the power). The facts are that the clock was functional as of 12:30. The "electronic" sign was turned off in 1973 to conserve power. Would you turn off a battery powered sign to conserve electricity? I'm not saying it is conclusive but you have contributed absolutely nothing but lazy contrarian objections. If you have proof of the power source, then share it. If Gary Mack were still around, I would be glad to ask him since the 6th floor museum still has the sign, but that train has left the station. Forget the sign and there are still numerous examples of the power and elevators being operational in this time frame.
The Hertz sign was 100 feet wide and contained 600 porcelain light bulb sockets. The cost of removal was quoted in mid 1978
as $26,000.
Hertz sign removal, May, 1979:
The time and temperature display consisted of a larger version of the basketball scoreboard common at that time and later in newer elementary and high school gyms. Since it was an outdoor display it required even brighter light bulbs than were common in scoreboards of baseball and football fields of that time. Numerical display of time and temperature is a more reliable description than digital since it was an analog display consuming considerable electric power.
From 1953, the infrastructure was in place on the TSBD roof for a devoted high voltage power line on its own independent circuit and utility meter.:
A back up battery seems an impractical and very costly enhancement. If the 600 bulbs averaged only 100 watts each,
60,000 watts plus the power requirement to keep time and sense temperature and translate both to the sign's circuitry
would increase that power load. 15 amps equal 1800 watts. 60,000/1800= 33.3 x 15 amps =
499.5 amps = 60,000 watts.
The minimum circuit to power the sign would be fused and designed for a 600 amp load, common amperage in
3 phase commercial service from the local utility. The light from those bulbs had to outshine the sun and
be visible from seven stories height. A photo sensor or timer may have signaled a rheostat to dim the sign lights
between sunset and dawn.
Your stove or clothes dryer are fed by a devoted 30 amp circuit. Try assembling and powering either from a battery pack. A battery source supplies DC current and requires an inverter to convert 12, 24, or 48 volts DC current to provide the 500 volt AC current that supplied the Hertz sign. This is a possibility but prohibitively expensive. IOW, there might be a one percent
chance the sign was equipped with battery back up or even a back up AC generator. A back up generator designed to
power a small hospital would have been required and also a secure place to locate it and a fuel supply. Fuel and the
generator would require monitoring and maintenance. A portable home generator supplies 3000 to 7500 watts, peak,
and 240 volts output is common. 600 volts requires a large commercial generator.
It is reasonable to believe the Hertz sign was metered independently of the TSBD and if someone manually switched off
some circuits powering areas of the TSBD, that the Hertz sign would have shined on. I read no persuasive argument that
power was interrupted inside the TSBD that afternoon, only much confused interpretation.
From DMN, January 4, 1982: